GeoData @ UCB

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You searched for: Publisher National Atlas of the United States Remove constraint Publisher: National Atlas of the United States Institution Stanford Remove constraint Institution: Stanford Data type Polygon Remove constraint Data type: Polygon Year 1941 Remove constraint Year: 1941
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1. Current Distributions of Selected Amphibians in the United States, 1941-2000

1941. Lannoo, Michael J., Blackburn, Laura, and Nanjappa, Priya. This polygon shapefile portrays the distribution of 10 selected amphibians in the United States, based on historical literature and museum records ... National Atlas of the United States.