APA Style

CUNNINGHAM, W, P., CUNNINGHAM, M, A. (2002). Principles of Environmental Science: inquiry and applications (1). New York: McGraw-Hill Book Company.

MLA Style

CUNNINGHAM, WILLIAM, P.., CUNNINGHAM, MARY, ANN. "Principles of Environmental Science: inquiry and applications". 1 New York: McGraw-Hill Book Company, 2002. Text.