00325nam a2200121Ia 450000500170000000800410001704100080005808200120006610000340007824500390011226000430015130000090019420260720174712.0260720s1965    xx            000 0 und d  aeng  a030 WBC  aRobert O Zeleny William Nault  aWorld book encyclopedia Vol-16(QR)  aChicago,LondonbField Enterprisec1965  a522p