00332nam 2228320 450000100060000000300230000600500090002900800410003808200080007902000180008710000120010526000300011725000060014724500350015328320StarLibrary Marc Built20180420201711 ||||| |||||||||||amh  a660 a0-8412-1997-4 aMaynard ba c s professional c1991 a4 aunderstanding chemical patents