Dyfyniad APA

Edwards, C. W. (1984). Overlay drafting systems. McGraw-Hill.

Dyfyniad Arddull Chicago

Edwards, Chester W. Overlay Drafting Systems. New York: McGraw-Hill, 1984.

Dyfyniad MLA

Edwards, Chester W. Overlay Drafting Systems. McGraw-Hill, 1984.

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