APA (7th ed.) Zitazioa
Gordon, J. C., & Berry, J. K. (2006). Environmental leadership equals essential leadership: Redefining who leads and how. Yale University Press.
Chicago Style (17th ed.) Zitazioa
Gordon, J. C., eta Joyce K. Berry. Environmental Leadership Equals Essential Leadership: Redefining Who Leads and How. New Haven: Yale University Press, 2006.
MLA (9th ed.) Zitazioa
Gordon, J. C., eta Joyce K. Berry. Environmental Leadership Equals Essential Leadership: Redefining Who Leads and How. Yale University Press, 2006.
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