Lidgett, A. (1919). Petroleum. I. Pitman & sons, ltd.
Lua i Stíl Chicago (17ú heag.)Lidgett, Albert. Petroleum. London, New York [etc.]: I. Pitman & sons, ltd, 1919.
Lua MLA (8ú heag.)Lidgett, Albert. Petroleum. I. Pitman & sons, ltd, 1919.
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