APA Style

Southwick, C, H. (1976). Ecology and the Quality of Our Environment Second Edition (Ed.2, Cet. 1). New York: D. Van Nostrand Company.

MLA Style

Southwick, Charles, H.. "Ecology and the Quality of Our Environment Second Edition". Ed.2, Cet. 1 New York: D. Van Nostrand Company, 1976. Text.