Speculator Mine Powder Plant

Chicago citation style
Unknown. Speculator Mine Powder Plant. 1956. Retrieved from the Digital Public Library of America, http://cdm16013.contentdm.oclc.org/cdm/ref/collection/p16013coll3/id/85. (Accessed August 12, 2020.)
APA citation style
Unknown, (1956) Speculator Mine Powder Plant. Retrieved from the Digital Public Library of America, http://cdm16013.contentdm.oclc.org/cdm/ref/collection/p16013coll3/id/85
MLA citation style
Unknown. Retrieved from the Digital Public Library of America <http://cdm16013.contentdm.oclc.org/cdm/ref/collection/p16013coll3/id/85>.
Note: These citations are programmatically generated and may be incomplete.