00253nam a2200109Ia 4500008004100000041000800041082001800049100001800067245002500085260002500110300000800135211209s1968    xx            000 0 und d  aeng  a660.2 N68 DAV  aDAVIDSON, H W  aMANUFACTURED CARBON   bPERGAMON PRESSc1968  a110