एपीए उद्धरण

Harris, C. J. (1968). Otters: A study of the recent lutrinae.

शिकागो स्टाइल उद्धरण

Harris, C J. Otters: A Study of the Recent Lutrinae. Weidenfeld & Nicoloson, London, 1968.

एमएलए उद्धरण

Harris, C J. Otters: A Study of the Recent Lutrinae. 1968.