TY  - GEN
AU  - John, K.C.
TI  - Textbook of machine drawing 
SN  - 9788120337213 
U1  - 621.815 JOH/T 
PY  - 2009///
CY  - Delhi
PB  - PHI Learning 
KW  - Machinery -- Drawings.
KW  - Machine design.
ER  -