00277nam a2200109Ia 4500082001900000100003200019245004900051260003400100300002300134500000500157700000500162  a518.5bW961.FS  aWulf, William A. and Others  aFundamental structures of computer scienceb  aReadingbAddison-Wesleyc1981  axviii, 621p. Index  a  a