APA način citiranja (7. izdanje)
ebrary, Inc, & Gullbert, J. M. (2011). Perspectives in environmental research. Nova Science Publishers, Inc..
Čikaški stil citiranja (17. izdanje)
ebrary, Inc, i Jonathan M. Gullbert. Perspectives in Environmental Research. New York: Nova Science Publishers, Inc., 2011.
MLA način citiranja (9. izdanje)
ebrary, Inc, i Jonathan M. Gullbert. Perspectives in Environmental Research. Nova Science Publishers, Inc., 2011.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.