Gaya APA

Steel, Ernest W.. (1960). Water supply and sewerage . : McGraw-Hill Book Company.

Gaya Chicago

Steel, Ernest W.. Water supply and sewerage. : McGraw-Hill Book Company, 1960. Text.

Gaya MLA

Steel, Ernest W.. Water supply and sewerage. : McGraw-Hill Book Company, 1960. Text.

Gaya Turabian

Steel, Ernest W.. Water supply and sewerage. : McGraw-Hill Book Company, 1960. Print.