000 00336nam a2200133Ia 4500
008 150226s9999 xx 000 0 und d
082 _a570.7 CHH
100 _a"Chhikara , M.S."
245 _aTeaching of Biology (life sciences)
250 _a2007
260 _b"Tandon Publication ,Ludihana"
300 _a570.7 CHH
942 _2ddc
_cBK
999 _c1616
_d1616