ISMI Islamic Scientific Manuscripts Initiative

Full reference OpenMind biblio ref
ben Gershom, Levi, Gerson Lange, and Gerson German. 1909. Sefer Maʾaśeh ḥoshev [The Work of a Counter]. Frankfurt am Main: Y. L. Golde.
 { Levi ben Gershom, Gerson Lange, Gerson German, 1909 #640 }