APA (7th ed.) Citation

Forbes, G. (1994). Modern logic: A text in elementary symbolic logic. Oxford University Press.

Chicago Style (17th ed.) Citation

Forbes, Graeme. Modern Logic: A Text in Elementary Symbolic Logic. New York, NY [u.a.]: Oxford University Press, 1994.

MLA (8th ed.) Citation

Forbes, Graeme. Modern Logic: A Text in Elementary Symbolic Logic. Oxford University Press, 1994.