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,.
Chicago-Zitierstil (17. Ausg.)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.
MLA-Zitierstil (8. Ausg.)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.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.