Dyfyniad APA

Gyngell, J. P. (1998). A User's guide trade marks and passing off (ed. 2.). Butterworths.

Dyfyniad Arddull Chicago

Gyngell, Julian Poulter. A User's Guide Trade Marks and Passing off. ed. 2. London: Butterworths, 1998.

Dyfyniad MLA

Gyngell, Julian Poulter. A User's Guide Trade Marks and Passing off. ed. 2. Butterworths, 1998.

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