APA

United States, . (1959). Executive modification of Mineral Leasing Act on Federal wildlife lands. [Washington, D.C.]: .

Chicago

United States, . 1959. Executive modification of Mineral Leasing Act on Federal wildlife lands. [Washington, D.C.]: .

Harvard

United States, . (1959). Executive modification of Mineral Leasing Act on Federal wildlife lands. [Washington, D.C.]: .

MLA

United States, . Executive modification of Mineral Leasing Act on Federal wildlife lands. [Washington, D.C.]: . 1959.