APA-ийн эшлэл(7 дахь хэвлэлт)

ebrary, Inc, Nowak, K. I., & Strybel, H. F. (2012). Spruce: Ecology, management, and conservation. Nova Science Publishers.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

ebrary, Inc, Kajetan I. Nowak, ба Helena F. Strybel. Spruce: Ecology, Management, and Conservation. New York: Nova Science Publishers, 2012.

MLA -ийн эшлэл (9 дэх хэвлэлт)

ebrary, Inc, et al. Spruce: Ecology, Management, and Conservation. Nova Science Publishers, 2012.