Cita APA (7th ed.)

Romero, A. T., & Torres, R. (2001). Switzerland. International Labour Office.

Cita Chicago (17th ed.)

Romero, Ana Teresa, i Raymond Torres. Switzerland. Geneva: International Labour Office, 2001.

Cita MLA (9th ed.)

Romero, Ana Teresa, i Raymond Torres. Switzerland. International Labour Office, 2001.