00389nam a2200169Ia 4500003000400000005001700004008004100021020001900062040000700081041000800088082001300096100002400109245002200133260004300155300000900198650001200207OSt20260428115514.0250729s2011    xx            000 0 und d  a978-8183162258  cAL  aeng  a530 KRIS  aV. Kishnamacharyalu  aScience education  aNew DelhibNeelkamal Publicationc2011  a356p  aScience