APA (7th ed.) Zitazioa
ebrary, Inc, & Gullbert, J. M. (2011). Perspectives in environmental research. Nova Science Publishers, Inc..
Chicago Style (17th ed.) Zitazioa
ebrary, Inc, eta Jonathan M. Gullbert. Perspectives in Environmental Research. New York: Nova Science Publishers, Inc., 2011.
MLA (9th ed.) Zitazioa
ebrary, Inc, eta Jonathan M. Gullbert. Perspectives in Environmental Research. Nova Science Publishers, Inc., 2011.
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