Joyce, G. H. (1956). Principles of logic (3rd. ed.). Longmans, Green & Co.
Cita Chicago Style (17a ed.)Joyce, George Hayward. Principles of Logic. 3rd. ed. London [etc.]: Longmans, Green & Co, 1956.
Cita MLA (9a ed.)Joyce, George Hayward. Principles of Logic. 3rd. ed. Longmans, Green & Co, 1956.
Precaución: Estas citas no son 100% exactas.