Cita APA (7th ed.)

Tolf, R. W. (1976). The Russian Rockefellers: The saga of the Nobel family and the Russian oil industry. Hoover Institution Press.

Cita Chicago (17th ed.)

Tolf, Robert W. The Russian Rockefellers: The Saga of the Nobel Family and the Russian Oil Industry. Stanford: Hoover Institution Press, 1976.

Cita MLA (8th ed.)

Tolf, Robert W. The Russian Rockefellers: The Saga of the Nobel Family and the Russian Oil Industry. Hoover Institution Press, 1976.