00487nam a2200181 4500 20150624110327.0 000 000 UOEL TP156.I6 .D6 1959 Michigan, Midland Dowex : ION Exchange, The Dow Chemical Company / Midland, Michigan Chicago; Donnelley and Sons Company , c1959. viii, 80p. : ill. includes index Dowex Chemical Technology lcc LL 10696 10696