00259nam a2200097Ia 4500008004100000082001600041100001800057245003600075260004200111300000800153140113s9999    xx            000 0 und d  a778.14   J8  a"Allen, R.M."  a"Photomicrography, 2nd edition"  a1958bD.Van Nostrand Co. Ltd.cCanada  a441