00345nam a2200121Ia 4500008004000000082001300040100001600053245006000069260003500129300001200164440000600176650004100182210210b1977   xxu||||| |||| 00| 0 eng d  a503 MCGR  aMcGRAW-HILL  aEncyclopaedia of science and technology.15 V.V1- a-azu.  aLondon.bMcGraw Hill Co.c1977  avii,774  a1  aEncyclopaedia Science and Technology