4 1 10 Franz Rosenthal Additional Author mixed material 0520019970 California University of California Press 1965 Franz Rosenthal Additional Author Emile Additional Author Jenny Marmorstein Additional Author mixed material 0520019970 USA Univ. of California Press 2002 an introduction to history Ibn Khaldun Additional Author Franz Rosenthal Additional Author N.J. Dawood Additional Author mixed material 0691017549 Princeton, N.J. : Princeton University Press 1981 the concept of knowledge in medieval Islam Franz Rosenthal Additional Author mixed material Leiden E.J.Brill 1970