Tohutoro APA (7th ed.)

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

Tohutoru Kātū Chicago (17th ed.)

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

Tohutoro MLA (9th ed.)

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