Cita APA

Steel, E. W. n. 1., & Steel, E. W. n. 1. (1947). Water supply and sewerage (2. edition.). New York, New York: McGraw-Hill.

Citación estilo Chicago

Steel, Ernest William n. 1893, y Ernest William n. 1893 Steel. Water Supply and Sewerage. 2. edition. New York, New York: McGraw-Hill, 1947.

Cita MLA

Steel, Ernest William n. 1893, y Ernest William n. 1893 Steel. Water Supply and Sewerage. 2. edition. New York, New York: McGraw-Hill, 1947.