A monograph of the Najades of Pennsylvania
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| Description | Pittsburgh: Published by the authority of the Board of Trustees of the Carnegie Institute, [1911-1919] |
| Author/s |
author: Arnold Edward Ortmann Carnegie Museum of Natural History |
| Publication date | 1919 |
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| Copyright status |
public domain in countries with 80 years pma or shorter. public domain in United States. |
| Missing/wrong data? | Edit Wikidata item |