000 00267nam a2200109Ia 4500
008 190719s9999 xx 000 0 und d
100 _aR S Dahiya/ A D Gupta
245 0 _aBook on higher trigonometry
260 _aDelhi
_bLaxmi Pub
_c1983
650 _aMath
942 _cBK
999 _c4428
_d4428