000 00221 a2200097 4500
001 58106
100 _a
245 _aScience encyclopedia
260 _aNew delhi
_bYoung learner pub
_c2008
090 _c35615
_d35615
942 _aNUST-CAE
_cMONOGRAPH
_c28464
999 _c293179
_d293179