APA-ийн эшлэл(7 дахь хэвлэлт)

Cunningham, W. P., Cunningham , M. A., & Woodworth , B. (2003). Environmental science: A global concern (7th ed.). McGraw-Hill.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Cunningham, William P., Mary Ann Cunningham , ба Barbara Woodworth. Environmental Science: A Global Concern. 7th ed. New York: McGraw-Hill, 2003.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Cunningham, William P., et al. Environmental Science: A Global Concern. 7th ed. McGraw-Hill, 2003.