Cite

Letter : Lake Superior, to Blanche Blackmore, 1874 Sep 25.

MLA

Blackmore, William, 1827-1878. Letter : Lake Superior, to Blanche Blackmore, 1874 Sep 25.. 1874 September 25. https://collections.library.yale.edu/catalog/11173709.

APA, 6th edition

Blackmore, William, 1827-1878. (1874 September 25)[Letter : Lake Superior, to Blanche Blackmore, 1874 Sep 25.]. https://collections.library.yale.edu/catalog/11173709.