Παραπομπή APA

Davis, M. L., & Cornwell , D. A. (1998). Introduction to environmental engineering (3rd ed.). McGraw-Hill.

Παραπομπή Chicago Style

Davis, Mackenzie L., και David A. Cornwell. Introduction to Environmental Engineering. 3rd ed. New York: McGraw-Hill, 1998.

Παραπομπή MLA

Davis, Mackenzie L., και David A. Cornwell. Introduction to Environmental Engineering. 3rd ed. McGraw-Hill, 1998.