TY  - BOOK
AU  - Pritam Singh Gill
TI  - A Textbook of Geometric Dimensioning and Tolerancing
SN  - 9789350143780
U1  - 621.7:744  GIL 
PY  - 2018///
CY  - New Delhi
PB  - S K Kataria and Sons
KW  - Engineering Drawing
ER  -