APA (7 ম সংস্করণ) উদ্ধৃতি

Orton, A. (1992). Learning mathematics: Issues, theory and classroom practice (2nd ed.). Cassell.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Orton, Anthony. Learning Mathematics: Issues, Theory and Classroom Practice. 2nd ed. London: Cassell, 1992.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Orton, Anthony. Learning Mathematics: Issues, Theory and Classroom Practice. 2nd ed. Cassell, 1992.