Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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