Commerce Clearing House. (1967). Guidebook to Federal wage-hour laws ([3rd ed.].). s.n.
Chicago Style aipamenaCommerce Clearing House. Guidebook to Federal Wage-hour Laws. [3rd ed.]. New York: s.n, 1967.
MLA aipamenaCommerce Clearing House. Guidebook to Federal Wage-hour Laws. [3rd ed.]. s.n, 1967.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.