APA (7th ed.) Citation

Lewis, E. (1954). Medieval political ideas. Routledge & K. Paul.

Chicago Style (17th ed.) Citation

Lewis, Ewart. Medieval Political Ideas. [London]: Routledge & K. Paul, 1954.

MLA (8th ed.) Citation

Lewis, Ewart. Medieval Political Ideas. Routledge & K. Paul, 1954.

Warning: These citations may not always be 100% accurate.