00330nam a22000977a 4500008004100000022001400041040005500055245003100110260007900141310001200220230711b        |||||||| |||| 00| 0 eng d  a0009-2517  aNational Science LibrarycNational Science Library  aChemical engineering world  aBombay: bExhibition & Communication Enterprises (India) Pvt. Ltd., c1966  aMonthly