Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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