TY  - BOOK
AU  - Billstein, Rick.
AU  - Billstein, Rick.
AU  - Billstein, Rick.
TI  - A problem solving approach to mathematics
SN  - 0805308652
AV  - QA135.6 .B55 1987
U1  - 372.7 21
PY  - 1987///
CY  - Boston
PB  - Pearson/Addison-Wesley
KW  - Study and teaching (Elementary)
KW  - Problem solving
KW  - Mathematics
N1  - Eighth ed. also published under title: A problem solving approach to mathematics for elementary school teachers; Includes bibliographical references and index
ER  -