Cite

[Ruschenberger] Harriet Parker to Dr. W. S. W. Ruschenberger (typed transcript)

MLA

Parker, Peter, 1804-1888. [Ruschenberger] Harriet Parker to Dr. W. S. W. Ruschenberger (typed transcript). 1849 April 23. https://collections.library.yale.edu/catalog/16808665.

APA, 6th edition

Parker, Peter, 1804-1888. (1849 April 23)[[Ruschenberger] Harriet Parker to Dr. W. S. W. Ruschenberger (typed transcript)]. https://collections.library.yale.edu/catalog/16808665.