עזרו לנו למנוע תקלות וסתימות במערכת הביוב
Publisher: ha-Giḥon, mifʻale mayim u-biyuv
Published: 200u
Place of publication: Yerushalayim
Language: heb
Subjects: Sewage disposal; Water-supply; Giḥon, Mifʻale mayim u-viyuv Yerushalayim be-ʻe.m.
Other titles: ʻIzru lanu li-menoʻa taḳalot u-setimot be-maʻarekhet ha-biyuv
Notes: Cover title.