Safeguarding classified information
By: Department of Transportation, Federal Aviation Administration
Series: Handbook -- 1600.2
Publisher: Dept. of Transportation, Federal Aviation Administration
Published: 1968
Place of publication: [Washington, D.C.?]
Language: eng
Subjects: United States. -- Federal Aviation Administration -- Handbooks, manuals, etc; Security classification (Government documents) -- United States
Notes: Cover title

"July 30, 1968."