000 00321nam a2200133Ia 4500
008 221001s1987 xx 000 0 eng d
082 _a657.45 VAR
100 _aVarshney, P. K.
245 0 _aAnkeshan
250 _a4th ed.
260 _aDelhi
_bShree Mahavir Book Depot
_c1987
300 _aiii, 416p.
942 _2ddc
_cBK
999 _c27814
_d27814