Possibly Mr. and Mrs. Herman Zwang, or relatives of the Zwang family, Germany, ca. 1880-1890

Chicago citation style
Kubica, Curt. Possibly Mr. and Mrs. Herman Zwang, or relatives of the Zwang family, Germany, ca. 1880-1890. ca. 1880-1890. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/jhp/id/251. (Accessed July 17, 2018.)
APA citation style
Kubica, Curt, (ca. 1880-1890) Possibly Mr. and Mrs. Herman Zwang, or relatives of the Zwang family, Germany, ca. 1880-1890. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/jhp/id/251
MLA citation style
Kubica, Curt. Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/jhp/id/251>.
Note: These citations are programmatically generated and may be incomplete.