TY  - BOOK
AU  - Vaidya,Narendera
TI  - Problem solving in science
AV  - Q181 .V27
U1  - 507/.1 
PY  - 1968///
CY  - Delhi
PB  - S. Chand
KW  - Science
KW  - Study and teaching
KW  - Problem solving
N1  - Bibliography: p. 171-188
ER  -