Cita APA (7th ed.)
Steel, E. W., & McGhee, T. J. (1979). Water supply and sewerage (5th ed.). McGraw-Hill.
Cita Chicago (17th ed.)
Steel, E. W., i Terence J. McGhee. Water Supply and Sewerage. 5th ed. New York: McGraw-Hill, 1979.
Cita MLA (9th ed.)
Steel, E. W., i Terence J. McGhee. Water Supply and Sewerage. 5th ed. McGraw-Hill, 1979.
Atenció: Aquestes cites poden no estar 100% correctes.