NARAYANA K.L, KANNAIAH.P, . (2005). TEXT BOOK ON ENGINEERING DRAWING. NEW DELHI: SCITECH PUB.
NARAYANA K.L, KANNAIAH.P, . 2005. TEXT BOOK ON ENGINEERING DRAWING. NEW DELHI: SCITECH PUB.
NARAYANA K.L, KANNAIAH.P, . TEXT BOOK ON ENGINEERING DRAWING. NEW DELHI: SCITECH PUB. 2005.