Acta [Seventeenth] Congressus Internationalis Ornithologici.
![Acta [Seventeenth] Congressus Internationalis Ornithologici. Rolf Nohring.](https://www.andrewisles.com/pictures/medium/4681.jpg?v=1561272320)
Berlin: Verlag der Deutschen Ornithologen-Gesellschaft, 1980. Octavo, text illustrations.
Most of the articles are in English.
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Andrew Isles Natural History Books
