000 00246nam a2200109Ia 4500
008 160921s9999 xx 000 0 und d
100 _aKULSHRESHTHA S.P.
245 _aTEACHING OF BIOLOGY
260 _bR.LAL
_c2009
300 _a424
942 _cBK
999 _c31512
_d31512