Excavation of the construction site for the Boston Public Library Johnson building, September 1969

Chicago citation style
Excavation of the construction site for the Boston Public Library Johnson building, September 1969. 1969-09-12. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/gt54m436h. (Accessed July 23, 2018.)
APA citation style
(1969-09-12) Excavation of the construction site for the Boston Public Library Johnson building, September 1969. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/gt54m436h
MLA citation style
Retrieved from the Digital Public Library of America <http://ark.digitalcommonwealth.org/ark:/50959/gt54m436h>.
Note: These citations are programmatically generated and may be incomplete.