Johnstone, P. (1987). Notes on logic and set theory. U.Pr.
Cita Chicago (17th ed.)Johnstone, P.T. Notes on Logic and Set Theory. Cambridge: U.Pr, 1987.
Cita MLA (9th ed.)Johnstone, P.T. Notes on Logic and Set Theory. U.Pr, 1987.
Atenció: Aquestes cites poden no estar 100% correctes.