copi irving M., C. c. (2005). Introduction To Logic (11th.). Prentice hall.
Lua i Stíl Chicago (17ú heag.)copi irving M., Cohen carl. Introduction To Logic. 11th. New Delhi: Prentice hall, 2005.
Lua MLA (9ú heag.)copi irving M., Cohen carl. Introduction To Logic. 11th. Prentice hall, 2005.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.