Porter, S. P. (1965). Petroleum Accounting Practices Stanley P. Porter. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Porter, Stanley P. Petroleum Accounting Practices Stanley P. Porter. McGraw-Hill, 1965.
Lua MLA (8ú heag.)Porter, Stanley P. Petroleum Accounting Practices Stanley P. Porter. McGraw-Hill, 1965.
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