Portass, R., & Wickham, C. (2011). Society, Community and Power in Northern Spain: 700-1000.
Chicago Style (17. basım) AtıfPortass, R., ve C. Wickham. Society, Community and Power in Northern Spain: 700-1000. 2011.
MLA (9th ed.) AtıfPortass, R., ve C. Wickham. Society, Community and Power in Northern Spain: 700-1000. 2011.
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