توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

American Petroleum Institute. Division of Finance and Accounting. (1967). Report on certain petroleum industry accounting practices: Resurvey as of December 31, 1966. American Petroleum Institute,.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

American Petroleum Institute. Division of Finance and Accounting. Report on Certain Petroleum Industry Accounting Practices: Resurvey as of December 31, 1966. N.Y.: American Petroleum Institute,, 1967.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

American Petroleum Institute. Division of Finance and Accounting. Report on Certain Petroleum Industry Accounting Practices: Resurvey as of December 31, 1966. American Petroleum Institute,, 1967.