"Postal workers march in front of the Post Office blocking arriving employees"

Chicago citation style
Ligato, Dominic. "Postal workers march in front of the Post Office blocking arriving employees". 1970-03-20. Retrieved from the Digital Public Library of America, http://digital.library.temple.edu/cdm/ref/collection/p15037coll3/id/31100. (Accessed September 23, 2018.)
APA citation style
Ligato, Dominic, (1970-03-20) "Postal workers march in front of the Post Office blocking arriving employees". Retrieved from the Digital Public Library of America, http://digital.library.temple.edu/cdm/ref/collection/p15037coll3/id/31100
MLA citation style
Ligato, Dominic. Retrieved from the Digital Public Library of America <http://digital.library.temple.edu/cdm/ref/collection/p15037coll3/id/31100>.
Note: These citations are programmatically generated and may be incomplete.