Cita APA

Soper, M. F. (1972). New Zealand birds. Robert Hale.

Chicago Edition Citation

Soper, M. F. New Zealand Birds. London: Robert Hale, 1972.

Cita MLA

Soper, M. F. New Zealand Birds. Robert Hale, 1972.

Atenció: Aquestes cites poden no estar 100% correctes.