Clark, W. R. (1995). At war within: The double-edged sword of immunity. Oxford University Press.
Čikaški stil citiranja (17. izdanje)Clark, William R. At War Within: The Double-edged Sword of Immunity. New York: Oxford University Press, 1995.
MLA način citiranja (9. izdanje)Clark, William R. At War Within: The Double-edged Sword of Immunity. Oxford University Press, 1995.
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