BLOCK and PROP (b/w)154

Chicago citation style
Powers, John J. BLOCK and PROP (b/w),154. 1960. Retrieved from the Digital Public Library of America, http://cdm16013.contentdm.oclc.org/cdm/ref/collection/p16013coll42/id/374. (Accessed July 2, 2020.)
APA citation style
Powers, John J, (1960) BLOCK and PROP (b/w),154. Retrieved from the Digital Public Library of America, http://cdm16013.contentdm.oclc.org/cdm/ref/collection/p16013coll42/id/374
MLA citation style
Powers, John J. Retrieved from the Digital Public Library of America <http://cdm16013.contentdm.oclc.org/cdm/ref/collection/p16013coll42/id/374>.
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