Cita APA (7th ed.)

International Labor Office, Geneva. (1920). Studies and reports, series D (Wages and hours). s.n.

Cita Chicago (17th ed.)

International Labor Office, Geneva. Studies and Reports, Series D (Wages and Hours). [Geneva: s.n, 1920.

Cita MLA (9th ed.)

International Labor Office, Geneva. Studies and Reports, Series D (Wages and Hours). s.n, 1920.