World Union for Progressive Judaism. (1930). Second conference of the World Union for Progressive Judaism.
Chicago-viite (17. p.)World Union for Progressive Judaism. Second Conference of the World Union for Progressive Judaism. 1930.
MLA-viite (8. p.)World Union for Progressive Judaism. Second Conference of the World Union for Progressive Judaism. 1930.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.