Michałowski, R., Kijak, A., Butterwick-Pawlikowski, R. J., & Butterwick, R. (2016). Gniezno summit: The religious premises of the founding of the archbishopric of Gniezno. East Central and Eastern Europe in the Middle Ages, 450 - 1450.
Chicago Style (17th ed.) CitationMichałowski, Roman, Anna Kijak, Richard John Butterwick-Pawlikowski, and Richard Butterwick. "Gniezno Summit: The Religious Premises of the Founding of the Archbishopric of Gniezno." East Central and Eastern Europe in the Middle Ages, 450 - 1450 2016.
MLA (8th ed.) CitationMichałowski, Roman, et al. "Gniezno Summit: The Religious Premises of the Founding of the Archbishopric of Gniezno." East Central and Eastern Europe in the Middle Ages, 450 - 1450, 2016.
Warning: These citations may not always be 100% accurate.