000 00360nam a22000977a 4500
008 220428s1976 de ||||| |||| 00| 0 ger d
080 _a
100 _aHelman, Paul
_9234919
245 _aIntermediate problem solving and data structures :
_bwalls and mirrors /
_cPaul Helman, Robert Veroff.
264 _aMenlo Park, California [ect.] :
_bBenjamin Cummings,
_c1986.
999 _c591861
_d591859