00394nam a2200133Ia 450000500170000000800460001703700290006304000200009204100130011208400210012524500370014626000630018330000140024620250508151457.0008  250505s9999    xx            000 0 eng d  aBooks to be hide in OPAC  aFEDLbengcFEDL  aeng2eng  a030, ENC/OqFEDL 0aBritannica book of the year 1951  aChicago, USAbChicago Encyclopaedia Britannica Pressc1951  axvi,721p.