Ha-Am ve-ruho: mehkarim u-masot bi-she'elot ha-mada veha-hayim.
Jerusalem: Hotsa'at Ruben Mas, 1938. Hardbound. Royal octavo, black cloth with gold lettering, 187 pp., notes. Text is in. Hebrew. More
Jerusalem: Hotsa'at Ruben Mas, 1938. Hardbound. Royal octavo, black cloth with gold lettering, 187 pp., notes. Text is in. Hebrew. More
Jerusalem: Hotsaat Ruben Mas, 1953. Hardbound. Small duodecimo, light brown cloth spine with brown lettering, orange paper covered boards with red lettering, endpapers cracked at the hinges, 268 pp., notes. In Hebrew. More
Jerusalem: Hotsaat Ruben Mas, 1953. Hardbound. Small duodecimo, light brown cloth spine with brown lettering, orange paper covered boards with red lettering, endpapers cracked at the hinges, 268 pp., notes. Minor chip[ping to the top open corner of the front board. In Hebrew. More