Cita APA

Kelly, J. J. (1997). The essence of logic Prentice Hall.

Citación estilo Chicago

Kelly, John J. The Essence of Logic. 1a. ed. London: Prentice Hall, 1997.

Cita MLA

Kelly, John J. The Essence of Logic. 1a. ed. London: Prentice Hall, 1997.