APA (7th ed.) Citation

Hughes, G. E., & Cresswell, M. J. (1984). A companion to modal logic (1. publ.). Methuen.

Chicago Style (17th ed.) Citation

Hughes, George E., and Maxwell J. Cresswell. A Companion to Modal Logic. 1. publ. London u.a: Methuen, 1984.

MLA (9th ed.) Citation

Hughes, George E., and Maxwell J. Cresswell. A Companion to Modal Logic. 1. publ. Methuen, 1984.