Bēt 'eqed sefārîm : Leqsîqôn bivlîôgrāfî = Bet eked sepharim, bibliographical lexicon of the whole Hebrew and Jewish-German literature, incl. of the Arab, Greek, French-Provencal, Italian, Latin, Persian, Samaritan, in the years 1474 - 1950 with Hebrew letters - Friedberg, Bernhard (Verfasser); Friedberg, Baruch (Bar Juda)