Cite

Letter from unidentified sender 3

MLA

Parker, Peter, 1804-1888. Letter from unidentified sender 3. 1871 May 30. https://collections.library.yale.edu/catalog/16808697.

APA, 6th edition

Parker, Peter, 1804-1888. (1871 May 30)[Letter from unidentified sender 3]. https://collections.library.yale.edu/catalog/16808697.