00558nam a2200205Ia 4500 60443 170228n2013 ii |||gr||||Z||||||465 9789380673837 465 516.24 Das, B C, Author . Higher trigonometry by B C Das, B N Mukherjee Textual Documents Throughly rev. 3rd ed. Calcutta U. N. Dhur & Sons Pvt. Ltd. 2013 x, 312pg: 19cm. Mathematics Trigonometry G-Mathematics ddc BK 0 0 0 0 General SKBL SKBL G-Math 2017-02-28 00000 0 516.24 Da 26 Hi 2341/math 2024-01-14 00:00:00 1 2017-02-28 BK 61578 61578