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Syosset, N.Y. : National Learning Corp., c2001.
c2001
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New York : Wiley, c2001.
c2001
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Alexandria, Va : Water Environment Federation, 1999.
1999
評級:
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Syosset, N.Y. : National Learning Corporation, c1998.
c1998
評級:
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United States.
[Washington, D.C.? : U.S. G.P.O. : Supt. of Docs., U.S. G.P.O., distributor, 1996]
1996
評級:
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Qasim, Syed R.
Lancaster, Pa : Technomic Pub. Co, c1994.
c1994
評級:
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[Washington, D.C.] : U.S. Environmental Protection Agency, 1993.
1993
評級:
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Bohn, Thomas.
Ehningen bei Böblingen : Expert, c1993.
c1993
評級:
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Crawford, Charles G., (Charles Gene)
[Reston, Va.?] : U.S. Dept. of the Interior, U.S. Geological Survey ; Denver, CO : For sale by U.S. Geological Survey, Map Distribution, 1993.
1993
評級:
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Tate, Donald M.
Ottawa, Canada : Ecosystem Sciences and Evaluation Directorate, Economics and Conservation Branch, 1992.
1992
評級:
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Dourlens, Christine.
Paris : L'Harmattan, [1992]
1992
評級:
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Ruíz Acevedo, Juan M (Juan Manuel)
Ecija, Sevilla : Editorial Gráficas Sol, 1991.
1991
評級:
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Clifton, James.
Dubuque, Iowa : Kendall/Hunt Pub. Co, c1988.
c1988
評級:
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Symposium on Wastewater Treatment (8th : 1985 : Montréal, Québec)
[Ottawa : Environnement Canada, Service de la protection de l'environnement, 1986]
1986
評級:
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United States. Congress. House. Committee on Public Works and Transportation. Subcommittee on Water Resources.
Washington : U.S. G.P.O, 1982.
1982
評級:
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National Conference on Less Costly Wastewater Treatment Systems for Small Communities (1977 : Reston, Va)
[Washington] : U.S. Environmental Protection Agency, [1978]
1978
評級:
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Logan : Utah Water Research Laboratory, College of Engineering, Utah State University, 1974.
1974
評級:
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Jenkins, Kenneth H.
[Washington] : U.S. Federal Water Quality Administration, Division of Technical Support, Technical Data and Information Branch; [for sale by the Supt. of Docs., U.S. Govt. Print. Off, 1971]
1971
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Washington, U.S. Dept. of the Interior; for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1971.
1971
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Garrett Research and Development Company.
Washington, U.S. Dept. of the Interior; for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1970.
1970
評級:
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Day, Maurice E.
Washington, U.S. Dept. of the Interior; for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1970.
1970
評級:
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Schneider, William Joseph, 1921-
Washington, 1969.
1969
評級:
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Lohr, E. W. (Edwin Wallace), 1897-
Washington, D.C. : U.S. G.P.O., 1957.
1957
評級:
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Streeter, Harold W. (Harold Warner), 1884-1961.
Washington : U.S. G.P.O., 1927.
1927
評級:
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