Das, B. C., & Mukherjee, B. N. (2006). Higher trigonometry (31st Ed.). Kolkata: U. N. Dhur & Sons.
Chicago Style CitationDas, B C., and B N. Mukherjee. Higher Trigonometry. 31st Ed. Kolkata: U. N. Dhur & Sons, 2006.
MLA CitationDas, B C., and B N. Mukherjee. Higher Trigonometry. 31st Ed. Kolkata: U. N. Dhur & Sons, 2006.
Warning: These citations may not always be 100% accurate.