Industrial security manual for safeguarding classified information. Jan. 18, 1951-
Published: ||||
Place of publication: [Washington]
Language: eng
Subjects: Industries -- Security measures
Notes: Issues for Dec. 13, 1951-          called "DD-441 (Attachment)"
Title varies slightly.
Issue for Jan. 18, 1951, prepared by the Office of Manpower and Industrial Security of the Munitions Board; Dec. 13, 1951, prepared by the Board's Office of Industrial Security.