Cite

ALS to William Walsh (1663-1708), [early 1691].

MLA

Dryden, John, 1631-1700. ALS to William Walsh (1663-1708), [early 1691].. [early 1691]. https://collections.library.yale.edu/catalog/11707231.

APA, 6th edition

Dryden, John, 1631-1700. ([early 1691])[ALS to William Walsh (1663-1708), [early 1691].]. https://collections.library.yale.edu/catalog/11707231.