De Haas, J. (1927). Theodor Herzl: A biographical study / by Jacob de Haas. Leonard.
Lua i Stíl Chicago (17ú heag.)De Haas, Jacob. Theodor Herzl: A Biographical Study / by Jacob De Haas. Chicago, Ill. ; New York, NY: Leonard, 1927.
Lua MLA (8ú heag.)De Haas, Jacob. Theodor Herzl: A Biographical Study / by Jacob De Haas. Leonard, 1927.
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