USA Committee on Standardization of Petroleum Specifications. (1920). Report of Committee on Standardization of Petroleum Specifications: Bulletin. Gov. Print. Off.
Chicago-Zitierstil (17. Ausg.)USA Committee on Standardization of Petroleum Specifications. Report of Committee on Standardization of Petroleum Specifications: Bulletin. Washington, DC: Gov. Print. Off, 1920.
MLA-Zitierstil (9. Ausg.)USA Committee on Standardization of Petroleum Specifications. Report of Committee on Standardization of Petroleum Specifications: Bulletin. Gov. Print. Off, 1920.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.