Basic documents on security classification of information for national security purposes
By: Harry L. Wrenn
Contributors: Library of Congress. Congressional Research Service
Series: Major studies of the Congressional Research Service -- 1975-76, reel 4, fr. 0055
Publisher: Congressional Research Service, Library of Congress
Published: 1975
Place of publication: [Washington, D.C.]
Language: eng
Format: Microform
Number of pages: 141
Subjects: Security classification (Government documents) -- United States; Government information -- United States; National security -- United States
Notes: Cover title

"August 18, 1975."

"75-181 F."

Microfilm. Arlington, Va. : University Publications of America, 1976. on 1 microfilm reel ; 35 mm. Low reduction. (Major studies of the Congressional Research Service. 1975-76 supplement ; reel 4, fr. 0055).