TY  - BOOK
AU  - Billstein, Rick.
AU  - Libeskind, Shlomo,;Lott, Johnny W.,
ED  - 
ED  - 
ED  - 
ED  - 
SN  - 805308512
SN  - 2
PY  - 1981///];copyright 1981.46
CY  - Menlo Park, Calif.
PB  - Benjamin/Cummings Pub. Co.
KW  - 
KW  - 2
KW  - 0
KW  - 6
KW  - 20
KW  - Study and teaching (Elementary)
KW  - Mathematics;Mathematics.;Problem solving
N1  - Includes bibliographies and index; 5
ER  -