Norton-Griffiths, M. (1968). The feeding behaviour of the oystercatcher, Haematopus ostralegus.
Cita Chicago (17th ed.)Norton-Griffiths, M. The Feeding Behaviour of the Oystercatcher, Haematopus Ostralegus. 1968.
Cita MLA (9th ed.)Norton-Griffiths, M. The Feeding Behaviour of the Oystercatcher, Haematopus Ostralegus. 1968.
Atenció: Aquestes cites poden no estar 100% correctes.