TY  - BOOK
AU  - Dhawan, R. K.
TI  - Textbook of machine drawing: in first angle projections
SN  - 81-219-0824-8
U1  - 621.80222 
PY  - 1996///
CY  - New Delhi
PB  - S. Chand
KW  - machine- Drawing
KW  - Projection theory
KW  - Technical- Drawing
KW  - Theory of projection
ER  -