Hoffer, W. (1965). Siegfried Bernfeld and "Jerubbaal". Year Book / Leo Baeck Institute.
Lua i Stíl Chicago (17ú heag.)Hoffer, Willi. "Siegfried Bernfeld and "Jerubbaal"." Year Book / Leo Baeck Institute 1965.
Lua MLA (8ú heag.)Hoffer, Willi. "Siegfried Bernfeld and "Jerubbaal"." Year Book / Leo Baeck Institute, 1965.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.