APA

United States, . (1972). Natural gas policy issues: hearings pursuant to S. Res. 45, National fuels and energy policy study, 92d Congress, 2d session, on review of public policy issues related to discovery, production, distribution, and use of natural gas substitutes, Feb. 25-Mar. 2, 1972. [Washington, D.C.]: .

Chicago

United States, . 1972. Natural gas policy issues: hearings pursuant to S. Res. 45, National fuels and energy policy study, 92d Congress, 2d session, on review of public policy issues related to discovery, production, distribution, and use of natural gas substitutes, Feb. 25-Mar. 2, 1972. [Washington, D.C.]: .

Harvard

United States, . (1972). Natural gas policy issues: hearings pursuant to S. Res. 45, National fuels and energy policy study, 92d Congress, 2d session, on review of public policy issues related to discovery, production, distribution, and use of natural gas substitutes, Feb. 25-Mar. 2, 1972. [Washington, D.C.]: .

MLA

United States, . Natural gas policy issues: hearings pursuant to S. Res. 45, National fuels and energy policy study, 92d Congress, 2d session, on review of public policy issues related to discovery, production, distribution, and use of natural gas substitutes, Feb. 25-Mar. 2, 1972. [Washington, D.C.]: . 1972.