Contractors asked to tell city of hiring

Chicago citation style
Unknown. Contractors asked to tell city of hiring. 1963-06-13. Retrieved from the Digital Public Library of America, http://digital.library.temple.edu/cdm/ref/collection/p15037coll7/id/2043. (Accessed September 20, 2018.)
APA citation style
Unknown, (1963-06-13) Contractors asked to tell city of hiring. Retrieved from the Digital Public Library of America, http://digital.library.temple.edu/cdm/ref/collection/p15037coll7/id/2043
MLA citation style
Unknown. Retrieved from the Digital Public Library of America <http://digital.library.temple.edu/cdm/ref/collection/p15037coll7/id/2043>.
Note: These citations are programmatically generated and may be incomplete.