United States. Bureau of Labor Statistics
and Mellor, Earl F.
Workers of Spanish Origin: A Chartbook : Bulletin of the United States Bureau of Labor Statistics, No. 1970 ,
Washington, D.C:
U.S. Dept. of Labor, Bureau of Labor Statistics,
1978, https://fraser.stlouisfed.org/title/4920,
accessed on August 6, 2024.