000 00293nam a22001217a 4500
020 _a0-669-03436-3
082 _a510
_bRUC
100 _aRucker . Walter E
_aDilley . Clyde A
245 _aHeath Mathematics
260 _aToronto
_bD .C . Heath And Company
_c1981
300 _a442 p.
942 _cL
999 _c17793
_d17793