Fromherz, A. (2010). Ibn Khaldun: Life and times. Edinburgh University Press.
Lua i Stíl Chicago (17ú heag.)Fromherz, Allen. Ibn Khaldun: Life and Times. Edinburgh: Edinburgh University Press, 2010.
Lua MLA (9ú heag.)Fromherz, Allen. Ibn Khaldun: Life and Times. Edinburgh University Press, 2010.
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