APA (7 ম সংস্করণ) উদ্ধৃতি

Wagner, G. (1940). Letter in German to Paul Heuduck, February 12, 1940. Saint Louis University Libraries Digitization Center.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Wagner, Gerdt. Letter in German to Paul Heuduck, February 12, 1940. Saint Louis University Libraries Digitization Center, 1940.

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

Wagner, Gerdt. Letter in German to Paul Heuduck, February 12, 1940. Saint Louis University Libraries Digitization Center, 1940.