APA (7th ed.) Citation

Deriabin, P., & Bagley, T. H. (1990). KGB: Masters of the Soviet Union (1. publ.). Robson Books.

Chicago Style (17th ed.) Citation

Deriabin, Peter, and Tennent H. Bagley. KGB: Masters of the Soviet Union. 1. publ. London: Robson Books, 1990.

MLA (9th ed.) Citation

Deriabin, Peter, and Tennent H. Bagley. KGB: Masters of the Soviet Union. 1. publ. Robson Books, 1990.

Warning: These citations may not always be 100% accurate.