APA-ийн эшлэл(7 дахь хэвлэлт)

Cunningham, W. P. (2004). Principles of Environmental Science: Inquiry and Applicaions. McGraw-Hill Higher Education, Boston.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Cunningham, William P. Principles of Environmental Science: Inquiry and Applicaions. New York: McGraw-Hill Higher Education, Boston, 2004.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Cunningham, William P. Principles of Environmental Science: Inquiry and Applicaions. McGraw-Hill Higher Education, Boston, 2004.