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