APA

United States, . (1972). Geothermal energy resources and research: hearings pursuant to S. Res. 45, national fuels and energy policy study, 92d Congress, 2d session, June 15 and 22, 1972. [Washington, D.C.]: .

Chicago

United States, . 1972. Geothermal energy resources and research: hearings pursuant to S. Res. 45, national fuels and energy policy study, 92d Congress, 2d session, June 15 and 22, 1972. [Washington, D.C.]: .

Harvard

United States, . (1972). Geothermal energy resources and research: hearings pursuant to S. Res. 45, national fuels and energy policy study, 92d Congress, 2d session, June 15 and 22, 1972. [Washington, D.C.]: .

MLA

United States, . Geothermal energy resources and research: hearings pursuant to S. Res. 45, national fuels and energy policy study, 92d Congress, 2d session, June 15 and 22, 1972. [Washington, D.C.]: . 1972.