APA (7th ed.) Zitazioa
U.S. Department of Labor. (1950). State and federal Hours Limitations: A summary. U.S. Government Print. Off.
Chicago Style (17th ed.) Zitazioa
U.S. Department of Labor. State and Federal Hours Limitations: A Summary. Washington: U.S. Government Print. Off, 1950.
MLA (9th ed.) Zitazioa
U.S. Department of Labor. State and Federal Hours Limitations: A Summary. U.S. Government Print. Off, 1950.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.