Teshuvot li-ḳehilat ʻAnah. /

by Ẓahalon, Yom Tov ben Moses, approximately 1559-approximately 1638
Yerushalayin : 711 [Jerusalem], 1950

The responsa of the Babylonian geonim as a source of Jewish history.

by Mann, Jacob, 1888-1940
New York : Arno Press, 1973