Mountain searches
Subtitle: effectiveness of helicopters
By: John M. Bownds ... [et al.] ; illustrations by Laurence G. Cripe.
Contributors: Bownds, John M.; National Association for Search and Rescue (U.S.)
Publisher: National Association for Search and Rescue
Published: 1991
Place of publication: [United States]
Language: eng
Number of pages: 35
Subjects: Helicopters in search and rescue operations -- Experiments.; Mountaineering.
Notes: Includes bibliographical references (p. 34).
"February, 1991."