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Lua i Stíl Chicago (17ú heag.)Trotti, Alberto. Tractatus De Horis Canonicis: Acc: De Defectibus Occurentibus in Missa. Cologne: Bergmann de Olpe, 1478.
Lua MLA (8ú heag.)Trotti, Alberto. Tractatus De Horis Canonicis: Acc: De Defectibus Occurentibus in Missa. Bergmann de Olpe, 1478.
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