O'Leary, D. L. E. (1939). Arabic thought and its place in history ([Rev. ed.].). Routledge and K. Paul.
Čikaški stil citiranja (17. izdanje)O'Leary, De Lacy Evans. Arabic Thought and Its Place in History. [Rev. ed.]. London: Routledge and K. Paul, 1939.
MLA način citiranja (9. izdanje)O'Leary, De Lacy Evans. Arabic Thought and Its Place in History. [Rev. ed.]. Routledge and K. Paul, 1939.
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