APA استشهاد

Colston,Catherine. (1999). Principles of intellectual property law. Cavendish publishing.

استشهاد بنمط شيكاغو

Colston,Catherine. Principles of Intellectual Property Law. London: Cavendish publishing, 1999.

MLA استشهاد

Colston,Catherine. Principles of Intellectual Property Law. Cavendish publishing, 1999.