Unger, R. W. (2004). Beer in the Middle Ages and the Renaissance. University of Pennsylvania Press.
Čikaški stil citiranja (17. izdanje)Unger, Richard W. Beer in the Middle Ages and the Renaissance. Philadelphia: University of Pennsylvania Press, 2004.
MLA način citiranja (9. izdanje)Unger, Richard W. Beer in the Middle Ages and the Renaissance. University of Pennsylvania Press, 2004.
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