ספר יסוד ושורש העבודה
Subtitle: kolel kaṿanot yesharot shel ha-tefilah ṿeha-Torah ṿeha-mitsṿot
Publisher: Ha-Ḳeren le-mazkeret nishmat Ḥayah Shina Fishel
Published: 1940
Place of publication: Yerushalayim
Language: heb
Subjects: Judaism
Other titles: Sefer Yesod ṿe-shoresh ha-ʻavodah; Yesod ṿe-shoresh ha-ʻavodah.
Work titles: Yesod ṿe-shoresh ha-ʻavodah
Notes: Added t.p.: The basis and the root of service.

Summary in English.