APA引文

American Oil Company. (1967). American traveler's guide to Negro history (3rd ed.). American Oil Co..

Chicago Style (17th ed.) Citation

American Oil Company. American Traveler's Guide to Negro History. 3rd ed. Chicago: American Oil Co., 1967.

MLA引文

American Oil Company. American Traveler's Guide to Negro History. 3rd ed. American Oil Co., 1967.