Gault, J. C. (1985). The Economics of Natural Gas in Developing Countries. ELSEVIER.
Lua i Stíl Chicago (17ú heag.)Gault, John C. The Economics of Natural Gas in Developing Countries. ELSEVIER, 1985.
Lua MLA (8ú heag.)Gault, John C. The Economics of Natural Gas in Developing Countries. ELSEVIER, 1985.
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