Rabbi Tanchum Gershon Bilitsky Publisher:
מכון ירושלים
Price list:
$26
Sale Price: $21
Research from one of the Geonim
of Lithuania on halacha, responsa,
chiddushim and explanations on
sugyos. Published anew, with
corrections, additions, comments,
sources and an index.
Ginat Bitan 
