TY  - GEN
AU  - Aggarwal, M.L.
AU  - Garg, R.K.
TI  - A text book of engineering drawing : according to SP 
U1  - 604.2 
PY  - 1997///
CY  - Delhi
PB  - Gagan kapur for dhanpat
KW  - TECHNICAL DRAWING
ER  -