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

Chicago citation style
Excavation of the construction site for the Boston Public Library Johnson building, December 1969. 1969-12-05. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/gt54m4489. (Accessed June 25, 2018.)
APA citation style
(1969-12-05) Excavation of the construction site for the Boston Public Library Johnson building, December 1969. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/gt54m4489
MLA citation style
Retrieved from the Digital Public Library of America <http://ark.digitalcommonwealth.org/ark:/50959/gt54m4489>.
Note: These citations are programmatically generated and may be incomplete.