Não informado. (2020). Petroleum Age and Service Station Merchandising. Petroleum Age Publishing Company.
Chicago-Zitierstil (17. Ausg.)Não informado. Petroleum Age and Service Station Merchandising. Chicago, Ill: Petroleum Age Publishing Company, 2020.
MLA-Zitierstil (8. Ausg.)Não informado. Petroleum Age and Service Station Merchandising. Petroleum Age Publishing Company, 2020.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.