Map of the north polar region

Chicago citation style
Bauman, Wm. (William). Map of the north polar region. approximately 1879. Retrieved from the Digital Public Library of America, http://cdm15138.contentdm.oclc.org/cdm/ref/collection/p15138coll23/id/10219. (Accessed October 19, 2019.)
APA citation style
Bauman, Wm. (William), (approximately 1879) Map of the north polar region. Retrieved from the Digital Public Library of America, http://cdm15138.contentdm.oclc.org/cdm/ref/collection/p15138coll23/id/10219
MLA citation style
Bauman, Wm. (William). Retrieved from the Digital Public Library of America <http://cdm15138.contentdm.oclc.org/cdm/ref/collection/p15138coll23/id/10219>.
Note: These citations are programmatically generated and may be incomplete.