summary of data relative to a recent invasion of willow ptarmigan
By: by L.L. Snyder and T.M. Shortt.
Contributors: Shortt, T. M.; Royal Ontario Museum of Zoology.
Series: Occasional papers of the Royal Ontario Museum of Zoology -- no. 3
Publisher: University of Toronto Press
Published: 1936
Place of publication: Toronto
Language: eng
Subjects: Ptarmigans.
Notes: Caption title.

"July 20, 1936."

Includes bibliographical references.