TY  - BOOK
AU  - Gill, P.S
TI  - Engineering drawing , geometrical drawing
SN  - 8185749620
U1  - 604.2 GIL 
PY  - 2009///
CY  - NEW DELHI
PB  - S.K.KATARIA
KW  - ENGINEERING DRAWING.GEOMETRICAL DRAWING
ER  -