APA (7 ম সংস্করণ) উদ্ধৃতি

Downs, R. B. (1978). Books that changed the world (2nd ed.). American Library Association.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Downs, Robert Bingham. Books That Changed the World. 2nd ed. Chicago: American Library Association, 1978.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Downs, Robert Bingham. Books That Changed the World. 2nd ed. American Library Association, 1978.