John, K. C. (2010). Engineering graphics for degree. PHI.
Dyfyniad Arddull ChicagoJohn, K C. Engineering Graphics for Degree. New Delhi: PHI, 2010.
Dyfyniad MLAJohn, K C. Engineering Graphics for Degree. PHI, 2010.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.