000 00240nam a2200097Ia 4500
008 170912s9999 xx 000 0 und d
100 _aBHUDEV SHARMA
245 0 _aSPHERICAL TRIGNOMETRY
260 _bJAYAPRAKASH NATH AND CO
_c1969
942 _cTB
999 _c3725
_d3725