00341nam a22001337a 450000500170000001000130001702000150003003500130004503700180005808200080007624500500008426000320013430000410016620181005170817.0  aA-232658  a0600377016  aA-232658  bOptimum Bools  a001  aYour Questions answered the book of knowledge  aLondonbOptimum Boolsc1983  a398p. (It include index)c24cm (hbk)