Citazione Stile APA (7a Edizione)

(1942). Secondary recover of oil in the United States. American Petroleum Institute.

Citazione stile Chigago Style (17a edizione)

Secondary Recover of Oil in the United States. Nueva York: American Petroleum Institute, 1942.

Citatione MLA (9a ed.)

Secondary Recover of Oil in the United States. American Petroleum Institute, 1942.