APA

United States, . (1970). Geothermal steam and resources: hearings before Subcommittee on Minerals, Materials, and Fuels, 91st Congress, 2d session, on S. 368, July 17 and 28, 1970. [Washington, D.C.]: .

Chicago

United States, . 1970. Geothermal steam and resources: hearings before Subcommittee on Minerals, Materials, and Fuels, 91st Congress, 2d session, on S. 368, July 17 and 28, 1970. [Washington, D.C.]: .

Harvard

United States, . (1970). Geothermal steam and resources: hearings before Subcommittee on Minerals, Materials, and Fuels, 91st Congress, 2d session, on S. 368, July 17 and 28, 1970. [Washington, D.C.]: .

MLA

United States, . Geothermal steam and resources: hearings before Subcommittee on Minerals, Materials, and Fuels, 91st Congress, 2d session, on S. 368, July 17 and 28, 1970. [Washington, D.C.]: . 1970.