Cita APA (7th ed.)

Naimpathy, S. (1963). A new course in trignometry (2nd.). Popular Prakashan.

Cita Chicago (17th ed.)

Naimpathy, S. A New Course in Trignometry. 2nd. Bombay: Popular Prakashan, 1963.

Cita MLA (9th ed.)

Naimpathy, S. A New Course in Trignometry. 2nd. Popular Prakashan, 1963.