00261nam a22001097a 4500999001900000041000800019082001600027245002800043260004800071300002100119942001100140  c177636d177636  aeng  aR 032 ENC.1  aBritannica Prespectives  aLondonbEncyclopedia Britannica, INC.c1968  axxx,731p.c25cm.  cREF BK