Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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