TY  - BOOK
AU  - Kenna,L A
TI  - Understanding mathematics
U1  - 510 KEN 
PY  - 1962///
CY  - New Jersey
PB  - Little field, adans
KW  - Curve- Stitding
KW  - Mathematical models
KW  - String models
KW  - Wooden models
ER  -