Modal Logic: An Introduction by Chellas, Brian F.

Modal Logic: An Introduction - Paperback, by Chellas Brian F. - Acceptable

Modal Logic: An Introduction by Chellas

Modal Logic: An Introduction by Brian F Chellas: Used

Modal Logic: An Introduction Brian Chellas Like New condition

Possibilities and Paradox: An Introduction to Modal and Many-Valued Logic, Beall

An Introduction to Modal Logic, Hughes/Cresswell, 1968, Methuen/London

An Introduction To Modal Logic 1972 corrected