APA-ийн эшлэл(7 дахь хэвлэлт)

Cunningham, W. P., & Cunningham, M. A. (2002). Principles of Environmental Science: Inquiry and Applications. Tata McGraw-Hill Publishing Company Limited.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Cunningham, William P., ба Mary Ann Cunningham. Principles of Environmental Science: Inquiry and Applications. New Delhi: Tata McGraw-Hill Publishing Company Limited, 2002.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Cunningham, William P., ба Mary Ann Cunningham. Principles of Environmental Science: Inquiry and Applications. Tata McGraw-Hill Publishing Company Limited, 2002.