Open AccessEcological subregion codes by county, coterminous United States
Author(s) -
Victor A. Rudis
Publication year - 1999
Publication title -
hathi trust digital library (the hathitrust research center)
Language(s) - Uncategorized
Resource type - Reports
DOI - 10.2737/srs-gtr-036
Subject(s) - geography , environmental science , ecology , biology
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