Proceedings 3rd International Congress of Entomology Zurich
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| Title | Proceedings 3rd International Congress of Entomology Zurich |
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Some unsolved problems of butterfly migration
A - Papers appearing in refereed journals
Williams, C. B. 1925. Some unsolved problems of butterfly migration. Proceedings 3rd International Congress of Entomology Zurich. 2, pp. 100-108.