Cita APA

United States. Central Intelligence Agency. (1968). Bulgaria: 5-68. [Washington.

Chicago Style Citation

United States. Central Intelligence Agency. Bulgaria: 5-68. [Washington, 1968.

Cita MLA

United States. Central Intelligence Agency. Bulgaria: 5-68. [Washington, 1968.

Atenció: Aquestes cites poden no estar 100% correctes.