Göttingen, 1969 231pp. (text in German) + 108pp. (text in Arabic), 21cm., softcover, Doctoral dissertation (Dissertation zur Erlangung des Doktorsgrades der Philosophischen Fakultät der Georg-August-Universität zu Göttingen), stamp at verso of title page, text is clean and bright, good condition, [Contains the Arabic text edition, and a study and translation in German], X110759