Zacharias Frankel, Darkhe ha-mishnah ve-darkhe ha-sefarim ha-nilvim eleha Tosefta, Mekhilta, Sifra, Sifre. Helek rishon: petihah leha-Mishnah, Leipzig 1859 Frankel, Zacharias, 1801-1875 Darkhe ha-Mishnah, Title pages,דרכי המשנה Hebrew and Latin Leipzig : [s.n.] [1859] Credit: Library at the Herbert D. Katz Center for Advanced Judaic Studies, University of Pennsylvania (more bibliographic information)