Acta [eighteenth] Congressus Internationalis Ornithologici: Moscow, August 16-24, 1982.
![Acta [eighteenth] Congressus Internationalis Ornithologici: Moscow, August 16-24, 1982. Ilychiev, V. M. Gavrilov.](https://www.andrewisles.com/pictures/medium/36228.jpg?v=1561272327)
Moscow: Academy of Sciences of the USSR, 1985. Octavo, text illustrations, a very good copy.
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