00268nam a2200109Ia 4500100001500000650001400015654003300029245003300062260003200095082001900127546001200146  aPerry/J.H   aChemistry  aChemical Engineers Hand Book  aChemical Engineers Hand book  bMcGraw HillaNew Yorkc1963  a660.2bPre/Chi  aENGLISH