Roos, L. (2003). "God wants it!": The ideology of martyrdom of the Hebrew Crusuade chronicles and its Jewish and Christian background. Uppsala Universitet.
Lua i Stíl Chicago (17ú heag.)Roos, Lena. "God Wants It!": The Ideology of Martyrdom of the Hebrew Crusuade Chronicles and Its Jewish and Christian Background. Uppsala: Uppsala Universitet, 2003.
Lua MLA (8ú heag.)Roos, Lena. "God Wants It!": The Ideology of Martyrdom of the Hebrew Crusuade Chronicles and Its Jewish and Christian Background. Uppsala Universitet, 2003.
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