Style de citation APA

(1977). CIA, Directorate of Intelligence, Review of Soviet Internal Affairs, June 7, 1977, Top Secret Umbra.

Style de citation Chicago

CIA, Directorate of Intelligence, Review of Soviet Internal Affairs, June 7, 1977, Top Secret Umbra. 1977.

Style de citation MLA

CIA, Directorate of Intelligence, Review of Soviet Internal Affairs, June 7, 1977, Top Secret Umbra. 1977.

Attention : ces citations peuvent ne pas être correctes à 100%.