Dyfyniad APA

Boundy, A. W. (1980). Engineering drawing (2nd ed.). McGraw-Hill.

Dyfyniad Arddull Chicago

Boundy, Albert William. Engineering Drawing. 2nd ed. Sydney: McGraw-Hill, 1980.

Dyfyniad MLA

Boundy, Albert William. Engineering Drawing. 2nd ed. McGraw-Hill, 1980.

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