Não informado. (1918). Monthly Labor Review. Department of Labour, Bureau of Labor Statistics.
Chicago-Zitierstil (17. Ausg.)Não informado. Monthly Labor Review. Washington: Department of Labour, Bureau of Labor Statistics, 1918.
MLA-Zitierstil (8. Ausg.)Não informado. Monthly Labor Review. Department of Labour, Bureau of Labor Statistics, 1918.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.