APA (7th ed.) Citation

(2009). The Warsaw Pact, 1955-1991. Central Intelligence Agency [etc.].

Chicago Style (17th ed.) Citation

The Warsaw Pact, 1955-1991. Central Intelligence Agency [etc.], 2009.

MLA (8th ed.) Citation

The Warsaw Pact, 1955-1991. Central Intelligence Agency [etc.], 2009.

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