"How did this crane get on top of unconnected bridge?"

Chicago citation style
"How did this crane get on top of unconnected bridge?". 1955-01-30. Retrieved from the Digital Public Library of America, http://digital.library.temple.edu/cdm/ref/collection/p15037coll3/id/50677. (Accessed December 13, 2018.)
APA citation style
(1955-01-30) "How did this crane get on top of unconnected bridge?". Retrieved from the Digital Public Library of America, http://digital.library.temple.edu/cdm/ref/collection/p15037coll3/id/50677
MLA citation style
Retrieved from the Digital Public Library of America <http://digital.library.temple.edu/cdm/ref/collection/p15037coll3/id/50677>.
Note: These citations are programmatically generated and may be incomplete.