APA

United States, . (1964). Phosphate leases: hearing before Subcommittee on Minerals, Materials, and Fuels, 88th Congress, 2d session, on S. 2500, May 20, 1964. [Washington, D.C.]: .

Chicago

United States, . 1964. Phosphate leases: hearing before Subcommittee on Minerals, Materials, and Fuels, 88th Congress, 2d session, on S. 2500, May 20, 1964. [Washington, D.C.]: .

Harvard

United States, . (1964). Phosphate leases: hearing before Subcommittee on Minerals, Materials, and Fuels, 88th Congress, 2d session, on S. 2500, May 20, 1964. [Washington, D.C.]: .

MLA

United States, . Phosphate leases: hearing before Subcommittee on Minerals, Materials, and Fuels, 88th Congress, 2d session, on S. 2500, May 20, 1964. [Washington, D.C.]: . 1964.