MLA

Euripides, Porson, Richard, 1759-180. Euripidou Hekabe = Euripidis Hecuba : ad fidem manuscriptorum emendata et brevibus notis emendationum potissimum rationes reddentibus instructa : in usum studiosae juventutis.. 1797. https://collections.library.yale.edu/catalog/2044500.

APA, 6th edition

Euripides, & Porson, Richard, 1759-180. (1797)[Euripidou Hekabe = Euripidis Hecuba : ad fidem manuscriptorum emendata et brevibus notis emendationum potissimum rationes reddentibus instructa : in usum studiosae juventutis.]. https://collections.library.yale.edu/catalog/2044500.