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Incoming Resources
- Bones of Agate, an administrative history of Agate Fossil Beds National Monument, Nebraska, Ron Cockrell
- Amidst ancient monuments, the administrative history of Mound City Group National Monument/Hopewell Culture National Historical Park, Ohio, by Ron Cockrell
- A signature of time and eternity, the administrative history of Indiana Dunes National Lakeshore, Indiana, Ron Cockrell
- Cultural landscape report, Harry S Truman National Historic Site, Independence, Missouri, by Ron Cockrell and Keith Krueger
- Amidst ancient monuments, the administrative history of Mound City Group National Monument/Hopewell Culture National Historical Park, Ohio, by Ron Cockrell
- Grand Portage National Monument, Minnesota, an administrative history, Ron Cockrell
- Scotts Bluff National Monument, Nebraska, an administrative history, 1960-1983, Ron Cockrell
- Figures on the landscape, Effigy Mounds National Monument historic resource study, prepared for National Park Service, Midwest Regional Office ; prepared by HRA Gray & Pape, LLC, Ron Cockrell
- A green shrouded miracle, the administrative history of Cuyahoga Valley National Recreation Area, Ohio, by Ron Cockrell
- A signature of time and eternity, the administrative history of Indiana Dunes National Lakeshore, Indiana, Ron Cockrell
- Amidst ancient monuments, the administrative history of Mound City Group National Monument/Hopewell Culture National Historical Park, Ohio, by Ron Cockrell
- Grand Portage National Monument, Minnesota, an administrative history, Ron Cockrell
- Scotts Bluff National Monument, Nebraska, an administrative history, 1960-1983, Ron Cockrell