APA način citiranja (7. izdanje)
ebrary, Inc, Nowak, K. I., & Strybel, H. F. (2012). Spruce: Ecology, management, and conservation. Nova Science Publishers.
Čikaški stil citiranja (17. izdanje)
ebrary, Inc, Kajetan I. Nowak, i Helena F. Strybel. Spruce: Ecology, Management, and Conservation. New York: Nova Science Publishers, 2012.
MLA način citiranja (9. izdanje)
ebrary, Inc, et al. Spruce: Ecology, Management, and Conservation. Nova Science Publishers, 2012.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.