APA

United States, . (1967). Wild and scenic rivers: hearings, 90th Congress, 1st session, on S. 119 and S. 1092, Apr. 13 and 14, 1967. [Washington, D.C.]: .

Chicago

United States, . 1967. Wild and scenic rivers: hearings, 90th Congress, 1st session, on S. 119 and S. 1092, Apr. 13 and 14, 1967. [Washington, D.C.]: .

Harvard

United States, . (1967). Wild and scenic rivers: hearings, 90th Congress, 1st session, on S. 119 and S. 1092, Apr. 13 and 14, 1967. [Washington, D.C.]: .

MLA

United States, . Wild and scenic rivers: hearings, 90th Congress, 1st session, on S. 119 and S. 1092, Apr. 13 and 14, 1967. [Washington, D.C.]: . 1967.