APA

United States, . (1956). Extension of purchase programs of strategic and critical minerals: hearings before Subcommittee on Minerals, Materials, and Fuels, 84th Congress, 2d session, in S. 2876 [and other bills], Apr. 19-May 25, 1956. [Washington, D.C.]: .

Chicago

United States, . 1956. Extension of purchase programs of strategic and critical minerals: hearings before Subcommittee on Minerals, Materials, and Fuels, 84th Congress, 2d session, in S. 2876 [and other bills], Apr. 19-May 25, 1956. [Washington, D.C.]: .

Harvard

United States, . (1956). Extension of purchase programs of strategic and critical minerals: hearings before Subcommittee on Minerals, Materials, and Fuels, 84th Congress, 2d session, in S. 2876 [and other bills], Apr. 19-May 25, 1956. [Washington, D.C.]: .

MLA

United States, . Extension of purchase programs of strategic and critical minerals: hearings before Subcommittee on Minerals, Materials, and Fuels, 84th Congress, 2d session, in S. 2876 [and other bills], Apr. 19-May 25, 1956. [Washington, D.C.]: . 1956.