Evaluation of soils and permafrost conditions in the territory of Alaska by means of aerial photographs
By: by Engineering Experiment Station, Purdue University ; prepared by Robert E. Frost ; prepared for the St. Paul District, Corps of Engineers, Department of the Army.
Contributors: Purdue University. Engineering Experiment Station.; United States. Army. Corps of Engineers. St. Paul District.
Publisher: St. Paul District, Corps of Engineers]
Published: 1950
Place of publication: [St. Paul
Language: eng
Subjects: Aerial photography in soil surveys.; Frozen ground.; Soils -- Alaska.
Notes: "September 1950."

Includes bibliographical references (v. 2, p. 107-112).