United States Bureau of Labor Statistics. (1919). Monthly labor review: MLR. Washington, DC: US Gov.Print.Off.
Chicago ZitierstilUnited States Bureau of Labor Statistics. Monthly Labor Review: MLR. Washington, DC: US Gov.Print.Off, 1919.
MLA ZitierstilUnited States Bureau of Labor Statistics. Monthly Labor Review: MLR. Washington, DC: US Gov.Print.Off, 1919.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.