International Labor Office, Geneva. (1921). Studies and reports, series I (Employment of women and children) no.1. s.n.
Chicago-referens (17:e uppl.)International Labor Office, Geneva. Studies and Reports, Series I (Employment of Women and Children) No.1. Geneva: s.n, 1921.
MLA-referens (9:e uppl.)International Labor Office, Geneva. Studies and Reports, Series I (Employment of Women and Children) No.1. s.n, 1921.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.