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3
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Water resources engineering / Ralph A. Wurbs, Wesley P. James.
- 627 W967
- Wurbs, Ralph Allen.
- Prentice-Hall of India,
- c2002.
- New Delhi :
-
Worms and human disease / Ralph Muller ; with contributions and the chapter on immunology of helminths from Derek Wakelin.
- 616.962
- Muller, Ralph, 1933-
- CABI,
- c2002.
- Wallingford ; New York :
-
Oceans 2020 : science, trends, and the challenge of sustainability / [edited by] John G. Field, Gotthilf Hempel, Colin P. Summerhayes.
- 551.46 O159t
- Island Press,
- c2002.
- Washington, DC :