edited by Robert B. Williams, Gordon L. Culp
Van Nostrand Reinhold, 1986
Buku Referensi
editor-in-chief, Larry W. Mays
McGraw-Hill, 2000
Buku Referensi
The American Water Works Association, Inc.
McGraw-Hill, 1971
Buku Referensi
edited by Frank N. Kemmer
McGraw-Hill, 2009
Buku Referensi
A Halsted Press Book, 1979
Buku Referensi