[Autograph letter signed to Edward Harley], Earl of Oxford
MLA
Cogan, Francis. [Autograph Letter Signed to Edward Harley], Earl of Oxford. 0AD. https://collections.library.yale.edu/catalog/2044311.
APA, 6th edition
Cogan, F. (0 C.E.). [Autograph letter signed to Edward Harley], Earl of Oxford [Correspondence]. https://collections.library.yale.edu/catalog/2044311.