TY  - BOOK
AU  - Wickelgren,Wayne A.
TI  - How to solve problems: elements of a theory of problems and problem solving
T2  - A Series of books in psychology
SN  - 0716708469
AV  - QA43 .W52
U1  - 511 
PY  - 1974///]
CY  - San Francisco
PB  - W. H. Freeman
KW  - Mathematics
KW  - Problems, exercises, etc
KW  - Local
KW  - Problem Solving
N1  - 920306; Bibliography: p. [257]
ER  -