Usage of combined airman certification by active airmen
Subtitle: an active airman population estimate
By: by Charles F. Booze, Jr.
Contributors: United States. Office of Aviation Medicine.
Series: AM -- 68-5.; AM (United States. Office of Aviation Medicine) -- 68-5.
Publisher: Department of Transportation, Federal Aviation Administration, Office of Aviation Medicine
Published: 1968
Place of publication: [S.l.]
Language: eng
Subjects: Air pilots -- Certification.; Air pilots -- Statistics.
Genres: Statistics.
Notes: Also available online.