Restoring the Ayer Mills clock tower

Chicago citation style
Restoring the Ayer Mills clock tower. 1990-1993. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/tb09js254. (Accessed July 18, 2018.)
APA citation style
(1990-1993) Restoring the Ayer Mills clock tower. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/tb09js254
MLA citation style
Retrieved from the Digital Public Library of America <http://ark.digitalcommonwealth.org/ark:/50959/tb09js254>.
Note: These citations are programmatically generated and may be incomplete.