Lake Superior winter mail line

Chicago citation style
Childs, B. F. (Brainard F.) (ca. 1841-1921). Lake Superior winter mail line. ca. 187--188-. Retrieved from the Digital Public Library of America, http://digitalcollections.nypl.org/items/510d47e0-1370-a3d9-e040-e00a18064a99. (Accessed August 19, 2018.)
APA citation style
Childs, B. F. (Brainard F.) (ca. 1841-1921), (ca. 187--188-) Lake Superior winter mail line. Retrieved from the Digital Public Library of America, http://digitalcollections.nypl.org/items/510d47e0-1370-a3d9-e040-e00a18064a99
MLA citation style
Childs, B. F. (Brainard F.) (ca. 1841-1921). Retrieved from the Digital Public Library of America <http://digitalcollections.nypl.org/items/510d47e0-1370-a3d9-e040-e00a18064a99>.
Note: These citations are programmatically generated and may be incomplete.