Dyfyniad APA

Intellectual Property Law Review (1989) Vol.21. Clark Boardman company.

Dyfyniad Arddull Chicago

Intellectual Property Law Review (1989) Vol.21. New York: Clark Boardman company.

Dyfyniad MLA

Intellectual Property Law Review (1989) Vol.21. Clark Boardman company.

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