Information on citing a translated work is taken from Purdue Owl MLA Guide.
Original Author's Last name, Initials. Title of the Work. Translated by Firstname Lastname, Publisher of the translation, Year of publication for the translation.
Foucault, Michel. Madness and Civilization: A History of Insanity in the Age of Reason. Translated by Richard Howard, Vintage-Random House, 1988.
In-text Citation: (Foucault, 195).