MLA

Edwards, Jonathan, 1703-1758. Eels, Nathaniel: "Their Church Covenant. Church Articles of Faith, and Body of Principles". Box 29, folder 1604. 1768 Apr. https://collections.library.yale.edu/catalog/11403880.

APA, 6th edition

Edwards, Jonathan, 1703-1758. (["Box 29, folder 1604"])(1768 Apr)[Eels, Nathaniel: "Their Church Covenant. Church Articles of Faith, and Body of Principles"]. https://collections.library.yale.edu/catalog/11403880.