Ryan, M. M. (2018). Handbook of U.S. labor statistics 2018: Employment, earnings, prices, productivity, and other labor data (21th edition [i.e. 21st], 2018.). Bernan Press.
Chicago-Zitierstil (17. Ausg.)Ryan, Mary Meghan. Handbook of U.S. Labor Statistics 2018: Employment, Earnings, Prices, Productivity, and Other Labor Data. 21th edition [i.e. 21st], 2018. Lanham: Bernan Press, 2018.
MLA-Zitierstil (9. Ausg.)Ryan, Mary Meghan. Handbook of U.S. Labor Statistics 2018: Employment, Earnings, Prices, Productivity, and Other Labor Data. 21th edition [i.e. 21st], 2018. Bernan Press, 2018.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.