Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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