A Bibliographical Sourcebook of Compressed Air, Diving, and Submarine Medicine: coverage to 31 December 1961. ... particular significance ... to end of 1964
Avalanche release and snow characteristics, San Juan Moutains, Colorado Final report 1971-1975, by Richard L. Armstrong and Jack D. Ives
Proceedings of the Symposium of the International Geographical Union Commission on High-Altitude Geoecology