Cite

[Letter], 1839 April 4, Liberty jail, Clay Co., Mo., [to Emma Hale Smith]

MLA

Smith, Joseph, 1805-1844. [Letter], 1839 April 4, Liberty jail, Clay Co., Mo., [to Emma Hale Smith]. 1839. https://collections.library.yale.edu/catalog/2014291.

APA, 6th edition

Smith, Joseph, 1805-1844. (1839)[[Letter], 1839 April 4, Liberty jail, Clay Co., Mo., [to Emma Hale Smith]]. https://collections.library.yale.edu/catalog/2014291.