एपीए उद्धरण

Andrews, S. M. (1977). Problems in vertebrate evolution.

शिकागो स्टाइल उद्धरण

Andrews, S Mahala. Problems in Vertebrate Evolution. Academic Press, London, 1977.

एमएलए उद्धरण

Andrews, S Mahala. Problems in Vertebrate Evolution. 1977.