TY  - BOOK
AU  - Spotts, M F  .
AU  - Shoup,T.E  .
TI  - Design of machine elements / 
SN  - 0  87692  395  3
U1  - 621.815 
PY  - 1991///
CY  - New Delhi : 
PB  - Prentice Hall of India Pvt Ltd. , 
ER  -