Stream monitoring manual 1997
"February 1997." "Illinois RiverWatch is a component of the ECOWATCH NETWORK, a statewide network of volunteers and high school science classes which collect ecosystem data. In addition to RiverWatch, ForestWatch began functioning in 1996, and WetlandWatch, and PrairieWatch will start up in 1997"--P. 1 Includes bibliographical references (p. 45-48) "Ecowatch Program"--Cover
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