File:SiphonTubes.JPG
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Surface irrigation system using siphon tubes. 2000. Photo by Dan Ogle, USDA Natural Resources Conservation Service.
Source
http://photogallery.nrcs.usda.gov/Index.asp
Licensing
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This image or file is a work of a United States Department of Agriculture employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain.
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File usage
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Background information
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