000 00298nam a2200121Ia 4500
008 211201s1992 xx 000 0 eng d
020 _a8171980287
082 _a303.73
100 _aSchaufele, Christophor
245 0 _aEARTH,ALGEBRA
260 _bMayur Publications
_aDelhi
_c1992
942 _2ddc
_cDMS
999 _c2678
_d2678