Παραπομπή APA

Subramaniam,H. (2007). Spherical trigonometry. Vijaya publications.

Παραπομπή Chicago Style

Subramaniam,H. Spherical Trigonometry. Mumbai: Vijaya publications, 2007.

Παραπομπή MLA

Subramaniam,H. Spherical Trigonometry. Vijaya publications, 2007.