APA (7th ed.) Citation

Chatterji, P. (1988). Trigonometry. Rajhans.

Chicago Style (17th ed.) Citation

Chatterji, P.N. Trigonometry. Meerut: Rajhans, 1988.

MLA (9th ed.) Citation

Chatterji, P.N. Trigonometry. Rajhans, 1988.