000 00268nam a22000977a 4500
020 _a8171415482
020 _a978-8171415489
245 _aINTERNATIONAL ENCYCLOPAEDIS OF SCIENCE AND TECHNOLOGY EDUCATION
260 _aIndia
_bDiscovery Publishing Pvt.Ltd
_c2011
942 _cBK
999 _c4707
_d4707