BENNETT, A. A. Formal Logic a Modern Introduction. Prentice Hall, Inc.
Lua i Stíl Chicago (17ú heag.)BENNETT, Albert A. Formal Logic a Modern Introduction. Prentice Hall, Inc.
Lua MLA (8ú heag.)BENNETT, Albert A. Formal Logic a Modern Introduction. Prentice Hall, Inc.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.