Occupations of federal white-collar and blue-collar workers

Chicago citation style
Occupations of federal white-collar and blue-collar workers. 1983-. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/002564706. (Accessed December 11, 2018.)
APA citation style
(1983-) Occupations of federal white-collar and blue-collar workers. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/002564706
MLA citation style
Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/002564706>.
Note: These citations are programmatically generated and may be incomplete.