APA aipamena

T Jeffery Parker & Williams A Haswell. (1956). A Textbook of Zoology (6th.). London.

Chicago Style aipamena

T Jeffery Parker and Williams A Haswell. A Textbook of Zoology. 6th. London, 1956.

MLA aipamena

T Jeffery Parker and Williams A Haswell. A Textbook of Zoology. 6th. London, 1956.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.