MLA

Edwards, Jonathan, 1703-1758. JUDE 19: "There was a sort of persons in the apostles' day who separated themselves from the steady ministers and churches that pretended to have the Spirit and to be very spiritual, but who really were carnal and had not the spirit of God" (p. 1). Box 12, folder 881. 1750 Dec. https://collections.library.yale.edu/catalog/10691992.

APA, 6th edition

Edwards, Jonathan, 1703-1758. (["Box 12, folder 881"])(1750 Dec)[JUDE 19: "There was a sort of persons in the apostles' day who separated themselves from the steady ministers and churches that pretended to have the Spirit and to be very spiritual, but who really were carnal and had not the spirit of God" (p. 1)]. https://collections.library.yale.edu/catalog/10691992.