APA (7th ed.) Zitazioa
ebrary, Inc, & Gibson, W. E. (2004). Eco-justice-- the unfinished journey. State University of New York Press.
Chicago Style (17th ed.) Zitazioa
ebrary, Inc, eta William E. Gibson. Eco-justice-- the Unfinished Journey. Albany: State University of New York Press, 2004.
MLA (9th ed.) Zitazioa
ebrary, Inc, eta William E. Gibson. Eco-justice-- the Unfinished Journey. State University of New York Press, 2004.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.