एपीए उद्धरण

Gopalakrishnan, N. S. A. (2009). Principles of intellectual property. Eastern books.

शिकागो स्टाइल उद्धरण

Gopalakrishnan, N S Agitha. Principles of Intellectual Property. Lucknow: Eastern books, 2009.

एमएलए उद्धरण

Gopalakrishnan, N S Agitha. Principles of Intellectual Property. Eastern books, 2009.