APA (7 ম সংস্করণ) উদ্ধৃতি

Gemar-Koeltzsch, E., & Heibel, Y. F. (1998). German marks: Postwar drawings and prints donated to the Busch-Reisinger Museum through the German Art Dealers Association.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Gemar-Koeltzsch, Erika, এবং Yule F. Heibel. German Marks: Postwar Drawings and Prints Donated to the Busch-Reisinger Museum Through the German Art Dealers Association. Cambridge, Massachusetts, 1998.

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

Gemar-Koeltzsch, Erika, এবং Yule F. Heibel. German Marks: Postwar Drawings and Prints Donated to the Busch-Reisinger Museum Through the German Art Dealers Association. 1998.