APA (7 ম সংস্করণ) উদ্ধৃতি

Leff, G. (1968). Paris and Oxford universities in the thirteenth and fourteenth centuries: An institutional and intellectual history. John Wiley and Sons.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Leff, Gordon. Paris and Oxford Universities in the Thirteenth and Fourteenth Centuries: An Institutional and Intellectual History. John Wiley and Sons, 1968.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Leff, Gordon. Paris and Oxford Universities in the Thirteenth and Fourteenth Centuries: An Institutional and Intellectual History. John Wiley and Sons, 1968.