Παραπομπή APA

Ferrar, W. (1967). Calculus for beginners. Oxford University.

Παραπομπή Chicago Style

Ferrar, W.L. Calculus for Beginners. London: Oxford University, 1967.

Παραπομπή MLA

Ferrar, W.L. Calculus for Beginners. Oxford University, 1967.