000 00281nam a2200097 4500
084 _2Colon Classification
100 _aNambiar, P K Ed.
245 _aTeach terms history,natural science /
_cedited by P K Nambiar
260 _aMadras :
_bGovernment Of India,
942 _2ddc
_cBK
999 _c746779
_d746779