(1978). United States government manual. Office of the federal register National archives and records service general service administration.
শিকাগো স্টাইলে সাইটেশনUnited States Government Manual. Washington: Office of the federal register National archives and records service general service administration, 1978.
এমএলএ সাইটেশনUnited States Government Manual. Office of the federal register National archives and records service general service administration, 1978.
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