Dyfyniad APA

John , K., & Varghese, P. (1996). Machine drawing (4th ed.). V.I.P. Publishers.

Dyfyniad Arddull Chicago

John , K.C, and P.I Varghese. Machine Drawing. 4th ed. Thrissur: V.I.P. Publishers, 1996.

Dyfyniad MLA

John , K.C, and P.I Varghese. Machine Drawing. 4th ed. V.I.P. Publishers, 1996.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.