Styl cytowania APA

(1984). DIA, "Soviet-European Communist Countries: Soviet Helicopters Attempt to Force Down U.S. Army Aircraft Within the Berlin Control Zone," December 25, 1984, Top Secret [Umbra].

Styl cytowania Chicago

DIA, "Soviet-European Communist Countries: Soviet Helicopters Attempt to Force Down U.S. Army Aircraft Within the Berlin Control Zone," December 25, 1984, Top Secret [Umbra]. 1984.

Styl cytowania MLA

DIA, "Soviet-European Communist Countries: Soviet Helicopters Attempt to Force Down U.S. Army Aircraft Within the Berlin Control Zone," December 25, 1984, Top Secret [Umbra]. 1984.

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