"Last gap for Walt Whitman Bridge closed"

Chicago citation style
McGonigal, Harry F. "Last gap for Walt Whitman Bridge closed". 1956-06-20. Retrieved from the Digital Public Library of America, http://digital.library.temple.edu/cdm/ref/collection/p15037coll3/id/67842. (Accessed December 15, 2018.)
APA citation style
McGonigal, Harry F, (1956-06-20) "Last gap for Walt Whitman Bridge closed". Retrieved from the Digital Public Library of America, http://digital.library.temple.edu/cdm/ref/collection/p15037coll3/id/67842
MLA citation style
McGonigal, Harry F. Retrieved from the Digital Public Library of America <http://digital.library.temple.edu/cdm/ref/collection/p15037coll3/id/67842>.
Note: These citations are programmatically generated and may be incomplete.