About the "eternal" permafrost and about the forms of ice and snow surviving summer in the Amur region

Polynov, B.About the "eternal" permafrost and about the forms of ice and snow experiencing summer in the Amur region.- [B.M .: B. and., 1910].-35-48 p.: il., table .. -The author is indicated at the end of the text.Bibliogr.In the tuning.Note .. - Ex.: Without Titus.l.and region..1. Territory (collection).Electronic copy source: PBOriginal storage location: Ban RAS