एपीए उद्धरण

The Trade Mark Reporter (1940) Vol.30. The United States Trade Mark Association.

शिकागो स्टाइल उद्धरण

The Trade Mark Reporter (1940) Vol.30. New York: The United States Trade Mark Association.

एमएलए उद्धरण

The Trade Mark Reporter (1940) Vol.30. The United States Trade Mark Association.