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Sorenson, Stephen K.;Geological Survey (U.S.) 1999. “Water quality and habitat conditions in upper Midwest streams relative to riparian vegetation and soil characteristics, August 1997”
Sorokin, I. U. I. 1999. “Radioisotopic methods in hydrobiology” : xiii, 321.
Southwood, P.A. Henderson 2000. “Ecological methods 3rd ed”
Southwood, Richard . “Ecological methods, with particular references to the study of insect populations” : xviii, 391.
Southwood, Richard 1966. “Ecological methods, with particular reference to the study of insect populations” : xviii, 391.
Southwood, Richard 1978. “Ecological methods : with particular reference to the study of insect populations”
Southwood, Richard 1987. “Ecological methods : with particular reference to the study of insect populations” : xxiv, 524.
Southwood, Richard;Henderson, P. A. 2000. “Ecological methods” : xv, 575.
Southwood, Richard;Henderson, P. A.;NetLibrary Inc. 2000. “Ecological methods” : xv, 575.
Sha'afi, Ramadan I.;Fernandez, Salvador M. 1983. “Fast methods in physical biochemistry and cell biology” : xii, 374.
Shafer, William M. 1997. “Antibacterial peptide protocols” : x, 259.
Sharpe, Paul T. 1988. “Methods of cell separation” : xiii, 272.
Sharpe, Paul T.;Mason, Ivor 1998. “Molecular embryology : methods and protocols” : cm..
Shelford, Victor E. 1929. “Laboratory and field ecology; the responses of animals as indicators of correct working methods” : xii, 608.
Shenk, Tanya M.;Franklin, Alan B. 2001. “Modeling in natural resource management : development, interpretation, and application” : xiii, 223.
Shifley, Stephen R. and Brian L. Brookshire  Brookshire, Stephen R. Shifley and Brian L. 2000. “Missouri Ozark Forest Ecosystem Project [microform] : site history, soils, landforms, woody and herbaceous vegetation, down wood, and inventory methods for the landscape experiment”
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Short, Frederick T.;Coles, Robert G. 2001. “Global seagrass research methods” : vii, 473 , [24] of plates.
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Silvertown, Jonathan , Janis Antonovics (eds)  Silvertown, Jonathan , Janis Antonovics 2001. “Integrating Ecology and Evolution in a Spatial Context BESS 14”