APA-viite

Howells, G. M. (2006). European fair trading law: The unfair commercial practices directive. Ashgate.

Chicago-tyylinen lähdeviittaus

Howells, Geraint Micklitz. European Fair Trading Law: The Unfair Commercial Practices Directive. England: Ashgate, 2006.

MLA-viite

Howells, Geraint Micklitz. European Fair Trading Law: The Unfair Commercial Practices Directive. Ashgate, 2006.