Fischel, W. J. (1954). Ibn Khaldun and Josippon.
Lua i Stíl Chicago (17ú heag.)Fischel, Walter J. Ibn Khaldun and Josippon. Barcelona, 1954.
Lua MLA (8ú heag.)Fischel, Walter J. Ibn Khaldun and Josippon. 1954.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.