Hem hayu rishonim.
Series: Sifriyat "La-dor" -- 46
Publisher: Hotsaʾat La-dor she-ʻal yad Ṿaʻad ha-ḥinukh ha-Yehudi bi-Nyu York
Place of publication: [New York]
Number of pages: 42
Notes: Added t.p.: They were the first.