APA (7th ed.) Zitazioa
Schultz, J. (2005). The Ecozones of the World: The Ecological Divisions of the Geosphere (Second Edition.). Springer Berlin Heidelberg. https://doi.org/10.1007/3-540-28527-X
Chicago Style (17th ed.) Zitazioa
Schultz, Jrgen. The Ecozones of the World: The Ecological Divisions of the Geosphere. Second Edition. Berlin, Heidelberg: Springer Berlin Heidelberg, 2005. https://doi.org/10.1007/3-540-28527-X.
MLA (9th ed.) Zitazioa
Schultz, Jrgen. The Ecozones of the World: The Ecological Divisions of the Geosphere. Second Edition. Springer Berlin Heidelberg, 2005. https://doi.org/10.1007/3-540-28527-X.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.