1. Wilderness Communications
Gordon H. Worley, RN, EMT-P 
Wilderness & Environmental Medicine 
Volume 22, Issue 3, Pages (September 2011)
DOI: /j.wem
Copyright © 2011 Wilderness Medical Society Terms and Conditions

2. Figure Ground-to-air signals.25
(Adapted from: United States Army. Field Manual No , Visual Signals. Washington, DC: Department of the Army; 1987:5.)
Wilderness & Environmental Medicine  , DOI: ( /j.wem )
Copyright © 2011 Wilderness Medical Society Terms and Conditions