APA

Mittal P., . (2007). trigonometry. New Delhi: Vrinda Publications.

Chicago

Mittal P.K, . 2007. trigonometry. New Delhi: Vrinda Publications.

Harvard

Mittal P., . (2007). trigonometry. New Delhi: Vrinda Publications.

MLA

Mittal P.K, . trigonometry. New Delhi: Vrinda Publications. 2007.