Laird, R. D., & Laird, B. A. (1970). Soviet communism and agrarian revolution. Harmondsworth: Penguin Books.
Cita Chicago (17th ed.)Laird, Roy D., i Betty A. Laird. Soviet Communism and Agrarian Revolution. Harmondsworth: Penguin Books, 1970.
Cita MLA (8th ed.)Laird, Roy D., i Betty A. Laird. Soviet Communism and Agrarian Revolution. Harmondsworth: Penguin Books, 1970.
Atenció: Aquestes cites poden no estar 100% correctes.