00349nam 2274864 450000100060000000300230000600500090002900800410003808200080007910000190008726000560010625000060016224500490016874864StarLibrary Marc Built20180430201711 ||||| |||||||||||amh  a615 aNabil Abdullah bصنعاء: دار الكتب الوطنية c2006 a5 aindustrial chemistry and technology in yemen