APA

Barron J., . (1974). KGB: the secret work of Soviet secret agents. New York: Reader's Digest Press; distributed by E.P. Dutton.

Chicago

Barron John, . 1974. KGB: the secret work of Soviet secret agents. New York: Reader's Digest Press; distributed by E.P. Dutton.

Harvard

Barron J., . (1974). KGB: the secret work of Soviet secret agents. New York: Reader's Digest Press; distributed by E.P. Dutton.

MLA

Barron John, . KGB: the secret work of Soviet secret agents. New York: Reader's Digest Press; distributed by E.P. Dutton. 1974.