TY  - BOOK
AU  - Kannappan, D .
AU  - Augustine,A.G  .
AU  - Paranthman,D  .
TI  - Mechanical estimating and costing / 
U1  - 621.1 
PY  - 1985///
CY  - New Delhi : 
PB  - Tata Mc-Graw Hill Publishing Company , 
ER  -