edited by Bill Cate
Directory Press, 1972
Buku Teks
McWhorter, David B., author
Water Resources Publications , 2010
Buku Teks
Eckenfelder, William Wesley, 1926-, author
McGraw-Hill, 1989
Buku Teks
Eckenfelder, William Wesley, 1926-, author
McGraw-Hill , 2000
Buku Teks
Huisman, L.
Macmillan Press, 1975
Buku Teks