Dyfyniad APA

Boundy, A. W. [. W. (2002). Sketchbook to accompany engineering drawing (6th ed.). McGraw Hill.

Dyfyniad Arddull Chicago

Boundy, A. W. [Albert William]. Sketchbook to Accompany Engineering Drawing. 6th ed. North Ryde, NSW: McGraw Hill, 2002.

Dyfyniad MLA

Boundy, A. W. [Albert William]. Sketchbook to Accompany Engineering Drawing. 6th ed. McGraw Hill, 2002.

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