"Topping out ceremonies for the Pennwalt Building"

Chicago citation style
Rosenberg, Richard. "Topping out ceremonies for the Pennwalt Building". 1969-08-15. Retrieved from the Digital Public Library of America, http://digital.library.temple.edu/cdm/ref/collection/p15037coll3/id/39926. (Accessed December 15, 2018.)
APA citation style
Rosenberg, Richard, (1969-08-15) "Topping out ceremonies for the Pennwalt Building". Retrieved from the Digital Public Library of America, http://digital.library.temple.edu/cdm/ref/collection/p15037coll3/id/39926
MLA citation style
Rosenberg, Richard. Retrieved from the Digital Public Library of America <http://digital.library.temple.edu/cdm/ref/collection/p15037coll3/id/39926>.
Note: These citations are programmatically generated and may be incomplete.