APA (7th ed.) Zitazioa

Heywood, V. H. (1973). Taxonomy and ecology. Academic Press.

Chicago Style (17th ed.) Zitazioa

Heywood, Vernon Hilton. Taxonomy and Ecology. Londres: Academic Press, 1973.

MLA (9th ed.) Zitazioa

Heywood, Vernon Hilton. Taxonomy and Ecology. Academic Press, 1973.