Παραπομπή σε μορφή APA (7η εκδ.)

(1980). ULTRA and the history of the United States Strategic Air Force in Europe vs. the German Air Force / by the U.S. Army Air Force.

Παραπομπή σε μορφή Chicago (17η εκδ.)

ULTRA and the History of the United States Strategic Air Force in Europe Vs. the German Air Force / by the U.S. Army Air Force. 1980.

Παραπομπή σε μορφή MLA (9th εκδ.)

ULTRA and the History of the United States Strategic Air Force in Europe Vs. the German Air Force / by the U.S. Army Air Force. 1980.