U.S. Bureau of Employment Security. (1955). Farm labor market developments, employment and wage supplement.
Chicago-referens (17:e uppl.)U.S. Bureau of Employment Security. Farm Labor Market Developments, Employment and Wage Supplement. Washington, D. C, 1955.
MLA-referens (9:e uppl.)U.S. Bureau of Employment Security. Farm Labor Market Developments, Employment and Wage Supplement. 1955.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.