Matthews, D. (1993). Cantiga: The songs of Inês de Castro - dramatic scena for soprano and chamber orchestra op. 45 (1988) / Text by Maggie Hemingway. Faber Music.
Chicago-viite (17. p.)Matthews, David. Cantiga: The Songs of Inês De Castro - Dramatic Scena for Soprano and Chamber Orchestra Op. 45 (1988) / Text by Maggie Hemingway. London: Faber Music, 1993.
MLA-viite (8. p.)Matthews, David. Cantiga: The Songs of Inês De Castro - Dramatic Scena for Soprano and Chamber Orchestra Op. 45 (1988) / Text by Maggie Hemingway. Faber Music, 1993.
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