Citazione Stile APA (7a Edizione)

Parker, S. P. (1980). McGraw-Hill encyclopedia of environmental science (2d ed.). McGraw-Hill Book Co..

Citazione stile Chigago Style (17a edizione)

Parker, Sybil P. McGraw-Hill Encyclopedia of Environmental Science. 2d ed. New York: McGraw-Hill Book Co., 1980.

Citatione MLA (9a ed.)

Parker, Sybil P. McGraw-Hill Encyclopedia of Environmental Science. 2d ed. McGraw-Hill Book Co., 1980.