TY  - BOOK
AU  - Dhawan, R. K.
AU  - 
TI  - textbook of engineering drawing :geometrical drawing
SN  - 81-219-1431-0
U1  - 621.7:744 
PY  - 2005///
CY  - New Delhi
PB  - S. Chand & Co.
KW  - Engineering drawing
ER  -