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1Publicado 1979SubjectsConference Proceeding Libro
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2Publicado 1995Subjects “...Endangered species United States....”
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5Publicado 1996Subjects “...Endangered species....”
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6por Yaffee, Steven LewisSubjects “...Endangered species Government policy United States....”
Publicado 1982
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10por Jakobsson, Kristin M., 1957-Subjects “...Endangered species Economic aspects....”
Publicado 1996
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11por Noss, Reed F.Subjects “...United States. Endangered Species Act of 1973....”
Publicado 1997
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13Publicado 1975Conference Proceeding Libro
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