MLA

Smith, Joseph, 1805-1844. Document stating that Christian Whitmer is a teacher of the Mormon Church : Fayette, Seneneca County, New York, 1830 Jun 9.. Folder 1. https://collections.library.yale.edu/catalog/2057742.

APA, 6th edition

Smith, Joseph, 1805-1844. (["Folder 1"])[Document stating that Christian Whitmer is a teacher of the Mormon Church : Fayette, Seneneca County, New York, 1830 Jun 9.]. https://collections.library.yale.edu/catalog/2057742.