Apt, K. R., & Turini, F. (1995). Meta-logics and logic programming. MIT Press.
Lua i Stíl Chicago (17ú heag.)Apt, Krzysztof R., agus Franco Turini. Meta-logics and Logic Programming. Cambridge, Mass.: MIT Press, 1995.
Lua MLA (8ú heag.)Apt, Krzysztof R., agus Franco Turini. Meta-logics and Logic Programming. MIT Press, 1995.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.