00373cam a2200169   450000500170000024500340001702000140005110000260006504400190009125000090011004100080011930000230012750000050015083000050015526000250016008200180018520260711133900.0  aDigital Computer Principlesb  a07009232X  aBurroughs Corporation  aEstados Unidos  a2ª   aeng  a578 p. il.; 24 cm.  a  v  abMc Graw Hillc1969  a004.02bB972d