Cita APA (7a ed.)

Ebel, R. E. (1961). The petroleum industry of the Soviet Union. American Petroleum Institute.

Cita Chicago Style (17a ed.)

Ebel, Robert E. The Petroleum Industry of the Soviet Union. Virginia: American Petroleum Institute, 1961.

Cita MLA (8a ed.)

Ebel, Robert E. The Petroleum Industry of the Soviet Union. American Petroleum Institute, 1961.