00323nam a2200121Ia 450000500170000000800410001704100080005808200120006610000340007824500370011226000430014930000090019220260720174712.0260720s1968    xx            000 0 und d  aeng  a030 WBC  aRobert O Zeleny William Nault  aWorld book encyclopedia Vol-8(G)  aChicago,LondonbField Enterprisec1968  a436p