APA

United States, . (1959). National Wilderness Preservation Act, 1959: hearings, 86th Congress, 1st session, on S. 1123, Mar. 30-Apr. 2, 1959. [Washington, D.C.]: .

Chicago

United States, . 1959. National Wilderness Preservation Act, 1959: hearings, 86th Congress, 1st session, on S. 1123, Mar. 30-Apr. 2, 1959. [Washington, D.C.]: .

Harvard

United States, . (1959). National Wilderness Preservation Act, 1959: hearings, 86th Congress, 1st session, on S. 1123, Mar. 30-Apr. 2, 1959. [Washington, D.C.]: .

MLA

United States, . National Wilderness Preservation Act, 1959: hearings, 86th Congress, 1st session, on S. 1123, Mar. 30-Apr. 2, 1959. [Washington, D.C.]: . 1959.