Tohutoro APA (7th ed.)

Das, B. C., & Mukherjee, B. N. Higher Trigonometry (26th ed.). U.N. Dhur & Sons.

Tohutoru Kātū Chicago (17th ed.)

Das, B. C., me B. N. Mukherjee. Higher Trigonometry. 26th ed. Calcutta: U.N. Dhur & Sons.

Tohutoro MLA (9th ed.)

Das, B. C., me B. N. Mukherjee. Higher Trigonometry. 26th ed. U.N. Dhur & Sons.