Gaya APA
}, G, M, F, {, E, A.
(1966).
Water Supply and Wastewater Removal
.
New York:
John Wiley & Sons Inc..
Gaya MLA
}, Gordon, Maskew, Fair, {, Et, Al.
"Water Supply and Wastewater Removal".
New York:
John Wiley & Sons Inc.,
1966.
Text.