How to know the butterflies; a manual of the butterflies of the eastern United States
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| Description | New York,D. Appleton,1904. | Cornell University Library |
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| Publication date | 1904 |
| Language | English |
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| Copyright status |
public domain in United States. public domain in countries with 80 years pma or shorter. |
| Missing/wrong data? | Edit Wikidata item |