בענין השתנות הטבעים
Subtitle: הריגת כינים בשבת
Series: Tokhnit limud be-ʻiyun, dape hakhanah le-shiʻur -- 39
Publisher: ʻOlamot
Published: 2008
Place of publication: Tel Aviv?
Language: heb
Subjects: Lice; Sabbath (Jewish law); Jewish law; Study and teaching; Prohibited work (Jewish law)
Other titles: Be-ʻinyan hishtanut ha-ṭivʻim; Hishtanut ha-ṭivʻim
Notes: Contains lesson no. 39 and the preparation sheet for the lesson.

Cover title.