Lewin, B. M. (1931). Otzar ha-Gaonim: Thesaurus of the Gaonic Responsa and commentaries ; following the order of the Talmudic Tractates / by B. M. Lewin. The Hebrew Univ. Press Association.
Chicago-referens (17:e uppl.)Lewin, Benjamin Manasseh. Otzar Ha-Gaonim: Thesaurus of the Gaonic Responsa and Commentaries ; Following the Order of the Talmudic Tractates / by B. M. Lewin. Jerusalem: The Hebrew Univ. Press Association, 1931.
MLA-referens (8:e uppl.)Lewin, Benjamin Manasseh. Otzar Ha-Gaonim: Thesaurus of the Gaonic Responsa and Commentaries ; Following the Order of the Talmudic Tractates / by B. M. Lewin. The Hebrew Univ. Press Association, 1931.
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