Citazione Stile APA (7a Edizione)

Watt, K. F. (1973). Principles of environmental science. McGraw-Hill.

Citazione stile Chigago Style (17a edizione)

Watt, Kenneth F. Principles of Environmental Science. New York: McGraw-Hill, 1973.

Citatione MLA (9a ed.)

Watt, Kenneth F. Principles of Environmental Science. McGraw-Hill, 1973.