APA (7th ed.) Zitazioa
Sipila, H. (1976). Women workers and society: International perspectives. ILO.
Chicago Style (17th ed.) Zitazioa
Sipila, Helvi. Women Workers and Society: International Perspectives. Geneva: ILO, 1976.
MLA (9th ed.) Zitazioa
Sipila, Helvi. Women Workers and Society: International Perspectives. ILO, 1976.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.