00378nam a2200145   450000100060000000300030000600500170000900800410002603500190006703500180008605000200010410000220012424500600014626000260020619511UR20220427164531.0061103|||||||||||||||||||||||||||||||| d  a(janium) 19500  a(janium)19499 4aQD74b.D72 19741 aDrago, Russell S.10aPrinciples of chemistryb : with practical perspectives  bAllyn and Baconc1974