APA (7th ed.) Citation

Sattar, M. A. (1994). A Text Book of Trigonometry. Modern Book Centre.

Chicago Style (17th ed.) Citation

Sattar, M. A. A Text Book of Trigonometry. Dhaka: Modern Book Centre, 1994.

MLA (9th ed.) Citation

Sattar, M. A. A Text Book of Trigonometry. Modern Book Centre, 1994.