TY  - BOOK
AU  - Johnson, Ray C.
TI  - OPTIMUM DESIGN OF MECHANICAL ELEMENT
U1  - 621.815 
PY  - 1961///
CY  - N. Y.
PB  - Wiley
KW  - Machinery -- Design
KW  - Machanics, Applied
N1  - Includes Bibliography
ER  -