00351nam a2200121Ia 450000500170000000800460001703700140006304000210007704100130009808400220011124500340013326000620016720250508153846.0008  250505s9999    xx            000 0 eng d  aReference  aFEDL bengcFEDL  aeng2eng  a030, WOR/RRqFEDL 0aWorld book encyclopedia. 20V.  aChicago bField Enterprises Educational Corporationc1961