Παραπομπή APA

(1978). United States government manual. Office of the federal register National archives and records service general service administration.

Παραπομπή Chicago Style

United States Government Manual. Washington: Office of the federal register National archives and records service general service administration, 1978.

Παραπομπή MLA

United States Government Manual. Office of the federal register National archives and records service general service administration, 1978.