Cita APA (7a ed.)

Thakur, B. R. (1965). Trigonometry (2nd ed.). Ram Prasad & Sons.

Cita Chicago Style (17a ed.)

Thakur, B. R. Trigonometry. 2nd ed. Agra: Ram Prasad & Sons, 1965.

Cita MLA (9a ed.)

Thakur, B. R. Trigonometry. 2nd ed. Ram Prasad & Sons, 1965.