000 00292nam a22001217a 4500
020 _a0-669-03021-X
082 _a510
_bRUC
100 _aRucker . Walter E
_aDilley . Clyde A
245 _aHeath Mathematics
260 _aToronto
_bD . C Heath And Company
_c1979
300 _a410 p.
942 _cL
999 _c17792
_d17792