"Air raid drill"

Chicago citation style
"Air raid drill". 1956-07-20. Retrieved from the Digital Public Library of America, http://digital.library.temple.edu/cdm/ref/collection/p15037coll3/id/43247. (Accessed December 12, 2018.)
APA citation style
(1956-07-20) "Air raid drill". Retrieved from the Digital Public Library of America, http://digital.library.temple.edu/cdm/ref/collection/p15037coll3/id/43247
MLA citation style
Retrieved from the Digital Public Library of America <http://digital.library.temple.edu/cdm/ref/collection/p15037coll3/id/43247>.
Note: These citations are programmatically generated and may be incomplete.