00652nam a2200217Ia 4500003000400000005001700004008004100021020001800062040000700080041000800087082001500095100002400110245003400134260004800168300000900216650002200225700002100247942001700268999001900285952013000304OSt20250822153007.0250729s2004    xx            000 0 und d  a9788171419135  cAL  aeng  a540.7 KUMM  aKumar Sunil9221879  aMethods of teaching chemistry  aNew DelhibDiscovery Publishing Housec2004  a339p  aChemistry9221880  aKosalani9221881  2ddccBEDhSc  c235211d235211  00104070aALbALd2025-07-29eSita Book Houseg195.00l0o540.7 KUMMpBED00530r2025-07-29 16:53:49v195.00w2025-07-29yBK