APA (7th ed.) Zitazioa
ebrary, Inc, Gutierrez, B., & Pena, C. (2010). Tundras: Vegetation, wildlife and climate trends. Nova Science Publishers.
Chicago Style (17th ed.) Zitazioa
ebrary, Inc, Beltran Gutierrez, eta Cristos Pena. Tundras: Vegetation, Wildlife and Climate Trends. New York: Nova Science Publishers, 2010.
MLA (9th ed.) Zitazioa
ebrary, Inc, et al. Tundras: Vegetation, Wildlife and Climate Trends. Nova Science Publishers, 2010.
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