Orientation systems: first things first
By: by Robert H. Wright.
Series: HumRRO. Professional paper ;; 70-3; Professional paper (Human Resources Research Organization) ;; 70-3.
Publisher: Human Resources Research Organization
Published: 1970
Place of publication: [Alexandria, Va.]
Language: eng
Number of pages: 11
Subjects: Range-finding.; Navigation (Aeronautics); Human-machine systems.
Notes: Cover title.
"Presentation at JANAIR Symposium on Geographic Orientation in Air Operations, Washington, D.C., November, 1968."