The mountain barrier /

Bibliographic Details
Main Author:	Edwards, R. Y. (Roger Yorke), 1924-
Format:	Book
Language:	English
Published:	Toronto : N.S.L. Natural Science of Canada Ltd., [1970]
Series:	Illustrated natural history of Canada.
Subjects:	Natural history > Canada. Natural history > Canadian Rockies (B.C. and Alta.)

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