APA (7th ed.) Citation

McHugh, L. (1997). World Heritage Convention and U.S. national parks. Congressional Research Service, Library of Congress.

Chicago Style (17th ed.) Citation

McHugh, Lois. World Heritage Convention and U.S. National Parks. [Washington, D.C.]: Congressional Research Service, Library of Congress, 1997.

MLA (9th ed.) Citation

McHugh, Lois. World Heritage Convention and U.S. National Parks. Congressional Research Service, Library of Congress, 1997.