TY  - BOOK
AU  - ; Dr. RK Dahwan 
TI  - A Textbook of Engineering Drawing: :  In First Angle Projection
SN  - 9788121914314
U1  - 604.2 DHA 
PY  - 2009///
CY  - India
PB  - ; S. Chand
KW  - Orthographic Projection
ER  -