Cita APA (7a ed.)

Steel, E. W. (1960). Water supply and sewerage (4.ed.). McGraw-Hill.

Cita Chicago Style (17a ed.)

Steel, Ernest W. Water Supply and Sewerage. 4.ed. New York: McGraw-Hill, 1960.

Cita MLA (8a ed.)

Steel, Ernest W. Water Supply and Sewerage. 4.ed. McGraw-Hill, 1960.