Annual report - Delaware River Basin Commission.

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Item Link Original Source
Limited (search only)   2d 1964 Pennsylvania State University
Limited (search only)   8th 1970 Pennsylvania State University
Limited (search only)   9th 1971 Pennsylvania State University
Limited (search only)   10th 1972 Pennsylvania State University
Limited (search only)   11th 1973 Pennsylvania State University
Limited (search only)   12th 1974 Pennsylvania State University
Limited (search only)   17th 1979 Pennsylvania State University
Limited (search only)   18th 1980 Pennsylvania State University
Limited (search only)   19th 1981 Pennsylvania State University
Limited (search only)   20th 1982 Pennsylvania State University
Limited (search only)   21st 1983 Pennsylvania State University
Limited (search only)   23rd 1984 Pennsylvania State University
Limited (search only)   1978 Northwestern University
Limited (search only)   1985 Pennsylvania State University
Limited (search only)   1986 Pennsylvania State University
Limited (search only)   1987 Pennsylvania State University
Limited (search only)   1988 Pennsylvania State University
Limited (search only)   1989 Pennsylvania State University
Limited (search only)   1990 Pennsylvania State University
Limited (search only)   1991 Pennsylvania State University
Limited (search only)   1992 Pennsylvania State University
Limited (search only)   1993 Pennsylvania State University
Limited (search only)   1994 Pennsylvania State University
Limited (search only)   1995 Pennsylvania State University
Limited (search only)   2002/2003 Cornell University