000 00284nam a2200121Ia 4500
008 190216s9999||||xx |||||||||||||| ||und||
100 _aChatterji. P.N
245 0 _aSpherical Trigonometry
250 _a2ND
260 _bRajana Prakashan
_c1984
650 _aMathematics
942 _cBK
999 _c30774
_d30774