000 00501nam a2200205Ia 4500
005 20250619144919.0
008 250619s9999||||xx |||||||||||||| ||und||
020 _c15.30
040 _aMAIN
041 _aEnglish
082 _a516.24
_bDAS
100 _aDas, B. C. and Mukherjee, B. N.
245 0 _aHigher secondary trigonometry
250 _a3rd ed.
260 _aCalcutta
_b; U. N. Dhur And Sons
300 _axi,229p.
650 _aMathematics
650 _aTrigonometry
942 _cBK
999 _c115915
_d115915