APA (7 ম সংস্করণ) উদ্ধৃতি

Hofstadter, R., & Metzger, W. P. (1955). the development of academic freedom in the United States. Columbia University Press.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Hofstadter, Richard, এবং Walter P. Metzger. The Development of Academic Freedom in the United States. New York: Columbia University Press, 1955.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Hofstadter, Richard, এবং Walter P. Metzger. The Development of Academic Freedom in the United States. Columbia University Press, 1955.