Conant, M. A. (1986). The world gas trade: A resource for the futur. Westview.
Tohutoru Kātū Chicago (17th ed.)Conant, Melvin A. The World Gas Trade: A Resource for the Futur. Boulder, Colo: Westview, 1986.
Tohutoro MLA (9th ed.)Conant, Melvin A. The World Gas Trade: A Resource for the Futur. Westview, 1986.
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