מדריך לבטיחות במכונת עיבוד־עץ

by J. Singer, P. Ḳidron, Israel. Miśrad ha-ḥinukh ṿeha-tarbut. Agaf ha-talmidim. Maḥlaḳah le-ṭipul ba-talmid. Maʻarekhet ha-ḥinukh ha-ṭekhnologi, Israel. Miśrad ha-ʻavodah ṿeha-reṿaḥah. Agaf le-hakhsharah ule-hishtalmut miḳtsoʻit, Meʼah, ha-Makhon le-emtseʻe horaʼah (Israel)