APA (7e ed.) Bronvermelding

United States. Bureau of Labor Statistics, ebrary, Inc, & Ryan, M. M. (2011). Handbook of U.S. labor statistics: Employment, earnings, prices, productivity, and other labor data (14th ed., 2011.). Bernan Press.

Chicago (17e ed.) Bronvermelding

United States. Bureau of Labor Statistics, Inc ebrary, en Mary Meghan Ryan. Handbook of U.S. Labor Statistics: Employment, Earnings, Prices, Productivity, and Other Labor Data. 14th ed., 2011. Lanham, MD: Bernan Press, 2011.

MLA (9e ed.) Bronvermelding

United States. Bureau of Labor Statistics, et al. Handbook of U.S. Labor Statistics: Employment, Earnings, Prices, Productivity, and Other Labor Data. 14th ed., 2011. Bernan Press, 2011.