Author: Friedmann, H., 1968.:
Title: The evolutionary history of the avian genus Crysococcyx. [U.S. Natl. Mus. Bull., 265.]
Description: Washington. 8vo. Pp. viii,137, 12 figs. on 2 col. plates, 4 figs., tabs., refs., index. Orig. wrappers, uncut.

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