APA (7 ম সংস্করণ) উদ্ধৃতি

Keller, J. W. (1964). Germany, the wall and Berlin: Internal politics during an international crisis. Vantage Press.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Keller, John Wendell. Germany, the Wall and Berlin: Internal Politics During an International Crisis. New York: Vantage Press, 1964.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Keller, John Wendell. Germany, the Wall and Berlin: Internal Politics During an International Crisis. Vantage Press, 1964.