APA citiranje

Kirk, A., & Anthony Kirk. A: Adolph B. Spreckels and the rise of the California petroleum industry. California historical society.

Trích dẫn kiểu Chicago

Kirk, Anthony, và Anthony Kirk. A: Adolph B. Spreckels and the Rise of the California Petroleum Industry. California historical society.

MLA citiranje

Kirk, Anthony, và Anthony Kirk. A: Adolph B. Spreckels and the Rise of the California Petroleum Industry. California historical society.