1. The Law: Presidential Proclamation 6920: Using Executive Power to Set a New Direction for the Management of National Monuments
2. Campaign for America’s Wilderness
A wilderness-forever future — A short history of the National Wilderness Preservation System
2001
Scott
Washington, DC
3. Congressional Research Service
National monuments and the Antiquities Act: Recent designations and issues (RL 30528)
2001
Library of Congress
Washington, DC
4. Congressional Research Service
National monument issues (RS20902)
2001
Library of Congress
Washington DC
5. Congressional Research Service
National monuments and the Antiquities Act (R41330)
2016
Library of Congress
Washington, DC