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1Published 1981Subjects: “...Limnology Periodicals....”
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2Published 1981Subjects: “...Limnology Periodicals....”
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3Published 1974Subjects: “...Limnology Periodicals....”
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4by Apmann, Robert P. (Robert Proctor), 1933-Subjects: “...Limnology Venezuela Valencia Lake....”
Published 1979
Book