00418ca0 a2200169ua 450000500170000000800410001702000220005804000090008004100080008908200170009710000210011424500350013525000110017026000410018130000120022265000140023420180509140204.0080401s1978           g     b000 u eng u  a0070963991cRs.48  aMAIN1 aeng14a547.001bBAN1 aBansal, Raj K. .10aOrganic reaction mechanisms /   a1st. /  aNew DelhibTata McGraw Hill cc1978.  a490p ;  0aChemistry