APA استشهاد

Loney, S. L. (1952). Plane trigonometry. Cambridge University.

استشهاد بنمط شيكاغو

Loney, Sidney L. Plane Trigonometry. Cambridge: Cambridge University, 1952.

MLA استشهاد

Loney, Sidney L. Plane Trigonometry. Cambridge University, 1952.