MLA

Dryden, John, 1631-1700, Duke, R, Shakespeare, William, 1564-1616. Troilus and Cressida. Troilus and Cressida, or, Truth found too late : a tragedy ... / written by John Dryden .... 1679. https://collections.library.yale.edu/catalog/10000131.

APA, 6th edition

Dryden, John, 1631-1700, & Duke, R, & Shakespeare, William, 1564-1616. Troilus and Cressida. (1679)[Troilus and Cressida, or, Truth found too late : a tragedy ... / written by John Dryden ...]. https://collections.library.yale.edu/catalog/10000131.