Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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