00315nam 2217793 450000100060000000300230000600500090002900800410003808200080007910000400008726000260012724500420015317793StarLibrary Marc Built20180503201711 ||||| |||||||||||amh  a530 aWalter D.conway & Richard J.petrosk bu.s.a: Amrecan c1995 aModern Counter Current Chromatography