APA (7th ed.) Zitazioa
Truett, J. C. (2009). Grass: In search of human habitat. University of California Press.
Chicago Style (17th ed.) Zitazioa
Truett, Joe C. Grass: In Search of Human Habitat. Berkeley: University of California Press, 2009.
MLA (9th ed.) Zitazioa
Truett, Joe C. Grass: In Search of Human Habitat. University of California Press, 2009.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.