Research publication /
Institute for Research on Land and Water Resources, The Pennsylvania State University.

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Full view   v.44(1968) University of Illinois at Urbana-Champaign
Full view   v.49-53(1967) University of Illinois at Urbana-Champaign
Full view   v.54-59(1968-1969) University of Illinois at Urbana-Champaign
Full view   v.60-63(1969-1970) University of Illinois at Urbana-Champaign
Full view   v.64-66(1970-1971) University of Illinois at Urbana-Champaign
Full view   v.67-73(1970-1972) University of Illinois at Urbana-Champaign
Full view   v.75-79(1973-1974) University of Illinois at Urbana-Champaign
Full view   v.80-85(1974) University of Illinois at Urbana-Champaign
Full view   v.86-89(1974) University of Illinois at Urbana-Champaign
Full view   v.91-97(1975-1976) University of Illinois at Urbana-Champaign