16 Resources share the relationship http://bibfra.me/vocab/relation/local/letterer to Costanza, John

Batman noir, the Dark Knight returns, Frank Miller, with Klaus Janson ; letters, John Costanza
Wonder Woman by George Pérez, writer, artist, George Pérez ; artists, Cynthia Martin, Jill Thompson, Romeo Tanghal, Russell Braun [and 11 others] ; colorists, Gene D'Angelo, Nansi Hoolahan ; letterers, Albert DeGuzman, John Costanza, Richard Starkings, Volume 6
The Fantastic Four, behold Galactus!
Captain America, Heroes return : the complete collection, writers, Mark Waid & Kurt Busiek with Roger Stern, Karl Kesel & Barbara Kesel ; pencilers, Ron Garney, Dale Eaglesham, Andy Kubert, Patch Zircher & Mark Bagley ; inkers, Bob Wiacek, Scott Koblish, Jesse Delperdang & Randy Emberlin with John Beatty, Andy Smith, Greg Adams & Scott Hanna ; colorists, Joe Rosas, Jason Wright, Chris Sotomayor, Tom Smith & Digital Chameleon ; letterers, John Costanza, Todd Klein and Richard Starkings & Comicraft's Emerson Miranda & co, Vol. 1
The savage sword of Conan, written by Roy Thomas, Dann Thomas ; pencils by John Buscema, M.C. Wyman ; inks by Ernie Chan, Tony DeZuniga, Dave Simons ; lettering by Diana Albers, John Costanza, Jack Morelli, Clem Robins ; cover illustration, Joe Jusko, Volume 19
Doctor Strange and the Secret Defenders, Roy Thomas & Ron Marz, writers ; Andre Coates & Tom Grindberg, pencilers ; Don Hudson, Fred Fredericks, Mike DeCarlo & Co., inkers ; John Kalisz, colorist ; Clem Robins & John Costanza, letterers
The Incredible Hulk epic collection, writers, Steve Englehart, Roy Thomas & Gerry Conway with Archie Goodwin, Steve Gerber, Chris Claremont & Tony Isabella ; penciler, Herb Trimpe ; inkers, Sal Trapani & Jack Abel with Herb Trimpe ; letterers, John Costanza & Art Simek with Jean Izzo, Charlotte Jetter, Alan Kupperberg & Dave Hunt ; colorists, George Roussos, Dave Hunt & Petra Goldberg with Clara Bear, Andrea Hunt, Stan Goldberg & Linda Lessman, Volume 6, 1972-1974
Batgirl, writers, Kelley Puckett, Scott Peterson, Chuck Dixon ; pencillers, Damion Scott, Vincent Giarrano, Giuseppe Camuncoli ; inkers, Robert Campanella, Jesse Delperdang, Klaus Janson [and two others] ; colorist, Jason Wright ; Digital Chameleon, separations ; [letterers], John Costanza, Albert T. DeGuzman, [1st series, Volume 3]
The new Teen Titans, writers, Marv Wolfman, Paul Levitz, John Byrne ; pencillers, Eduardo Barreto, John Byrne, Kerry Gammill, Jim Baikie ; inkers, Romeo Tanghal, Eduardo Barreto, José Luis García-López, Jim Baikie ; colorist, Adrienne Roy ; letterers, John Costanza, Bob Lappan, Albert DeGuzman, Agustin Mas, Volume 12
Eternals, cosmic origins, writer, Jack Kirby [and others]
Batman, Knight out, writer, Chuck Dixon ; pencillers, Graham Nolan, Jim Aparo ; inkers, Bob McLeod, Bill Sienkiewicz, Scott Hanna, Tom Palmer, [and 4 others] ; colorist, Gloria Vasquez ; letterer, John Costanza
JSA, the golden age, written by James Robinson ; art by Paul Smith ; color by Richard Ory ; lettered by John Costanza ; collection cover by Paul Smith wth José Villarrubia
Batman, the Dark Knight detective, Mike W. Barr, Joey Cavalieri, Jo Duffy, writers ; Alan Davis, Jim Baikie, Norm Breyfogle [and others], pencillers ; Paul Neary, Jim Baikie [and others], inkers ; Carl Gafford, Julianna Ferriter, Adrienne Roy, Klaus Janson, colorists ; John Costanza, [and others], letterers ; Alan Davis, Paul Neary and Allen Passalaqua, collection cover artists, Volume 1
The chronicles of Conan, written by Roy Thomas, Sandy Plunkett ; pencils by Mike Docherty [and 3 others] ; inks by Ernie Chan [and 4 others] ; coloring by Nel Yomtov [and 4 others] ; lettering by John Costanza, Jack Morelli, Rick Parker ; cover art by Steve Lightle, Volume 32
Ronin, created, written and drawn by Frank Miller ; coloring by Lynn Varley ; lettering by John Costanza
Suicide Squad, John Ostrander, Keith Giffen, J.M. DeMatteis, Paul Kupperberg, Robert Greeberger, writers ; Luke McDonnell, Bob Lewis [and five others], artists ; Gene D'Angelo, Carl Gafford, Julianna Ferriter, colorists ; Todd Klein, Bob Lappan, Steve Haynie, John Costanza, letterers, [1st series, Vol. 2]