Clocksin, W. F., & Mellish, C. S. Programming in Prolog.
Lua i Stíl Chicago (17ú heag.)Clocksin, W. F., agus C. S. Mellish. Programming in Prolog.
Lua MLA (9ú heag.)Clocksin, W. F., agus C. S. Mellish. Programming in Prolog.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.