TY  - BOOK
AU  -  P.S. Gill
TI  - Geometric Dimensioning & Tolerancing
SN  - 978-93-5014-378-0
U1  - 621.815 
PY  - 2006///
CY  - S.K Kataria, New Delhi 
PB  - S.K Kataria, New Delhi 
ER  -