Mafteaḥ ha-mafteḥot
Subtitle: bibliografyah shel bibliografyot kol-Yiśreʾeliyot
Edition: Mahadurah metsulemet shel "mahadurah sheniyah murḥevet" 725 be-tosefet tiḳunim.
Publisher: Hotsaʾat sefarim ʻal shem Y.l. Magnes, ha-Universiṭah ha-ʻIvrit
Published: 1969
Place of publication: Jerusalem
Language: heb
Number of pages: 997
Subjects: Jews; Bibliography
Notes: Added t.p.: Bibliography of Jewish bibliographies.

Contents and preface also in English.