TY  - BOOK
AU  - STEDFELD, ROBERT L
ED  - A PENTON PUBLICATION, CLEVELAND
TI  - Machine Design Vol 40,No 16, 1968
U1  - 621.87505 
PY  - 1968///
CY  - CLEVELAND
PB  - A PENTON PUBLICATION
KW  - MACHINE DESIGN
ER  -