MLA

Edwards, Jonathan, 1703-1758. 9. 1752 Nov 24. JE. Transcript of a letter to Thomas Gillespie, in the hand of Sereno E. Dwight.. Box 6, folder 202. 1752 November 24. https://collections.library.yale.edu/catalog/33306924.

APA, 6th edition

Edwards, Jonathan, 1703-1758. (["Box 6, folder 202"])(1752 November 24)[9. 1752 Nov 24. JE. Transcript of a letter to Thomas Gillespie, in the hand of Sereno E. Dwight.]. https://collections.library.yale.edu/catalog/33306924.