Basson, A. H., & O'Connor, D. J. (1993). Introduction to Symbolic Logic: Introduction to Symbolic Logic (Reprint.). Oxford University Press.
Citazione stile Chigago Style (17a edizione)Basson, A. H., e D. J. O'Connor. Introduction to Symbolic Logic: Introduction to Symbolic Logic. Reprint. New Delhi: Oxford University Press, 1993.
Citatione MLA (9a ed.)Basson, A. H., e D. J. O'Connor. Introduction to Symbolic Logic: Introduction to Symbolic Logic. Reprint. Oxford University Press, 1993.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.