en: He published and wrote the prefaces to editions of Robert Owen ( 1934 ) , Thomas More ( 1935 ) and Tommaso Campanella ( 1950 ) . He published and wrote the prefaces to the editions of Robert Owen ( 1934 ) , Thomas More ( 1935 ) and Tommaso Campanella ( 1950 ) .
ms: Beliau menerbitkan dan menulis mukadimah kepada edisi Robert Owen (1934), Thomas More (1935) dan Tommaso Campanella (1950). Beliau menerbitkan dan menulis kata pengantar kepada edisi Robert Owen (1934), Thomas More (1935) dan Tommaso Campanella (1950).