Williams, H. R., & Meyers, C. J. (1975). Oil and gas law (Abridged ed.). M. Bender.
Lua i Stíl Chicago (17ú heag.)Williams, Howard R., agus Charles J. Meyers. Oil and Gas Law. Abridged ed. New York: M. Bender, 1975.
Lua MLA (9ú heag.)Williams, Howard R., agus Charles J. Meyers. Oil and Gas Law. Abridged ed. M. Bender, 1975.
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