At play

Chicago citation style
At play. Retrieved from the Digital Public Library of America, http://digitalcollections.nypl.org/items/510d47de-6779-a3d9-e040-e00a18064a99. (Accessed December 16, 2018.)
APA citation style
At play. Retrieved from the Digital Public Library of America, http://digitalcollections.nypl.org/items/510d47de-6779-a3d9-e040-e00a18064a99
MLA citation style
Retrieved from the Digital Public Library of America <http://digitalcollections.nypl.org/items/510d47de-6779-a3d9-e040-e00a18064a99>.
Note: These citations are programmatically generated and may be incomplete.