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Fitxer:Verdi's Requiem - Zenatello, Lawrence, Gay, and Rothier, 1916.jpg
Marek, Dan H. (2016) Alto: The Voice of Bel Canto, Rowman & Littlefield, p. 186 ISBN: 9781442235892. English
Fitxer:Verdi's Requiem in the open air LCCN97501840.jpg
DescriptionVerdi's Requiem in the open air LCCN97501840.jpg English: Title: Verdi's Requiem in the open air Abstract/medium: 1 photographic print. Date
