TY  - BOOK
AU  - Khurmi, R. S. 
AU  - Gupta, J. K. 
TI  - Textbook Of Machine Design: Si Units 
SN  - 0
U1  - 621.815 
PY  - 2009///
CY  - New Delhi; 
PB  - S Chand And Company Ltd. 
ER  -