APA-referens (7:e uppl.)

Unknown. American Lyric Tenor and Composer Roland Hayes Performing on the Xavier University of Louisiana Campus.

Chicago-referens (17:e uppl.)

Unknown. American Lyric Tenor and Composer Roland Hayes Performing on the Xavier University of Louisiana Campus.

MLA-referens (8:e uppl.)

Unknown. American Lyric Tenor and Composer Roland Hayes Performing on the Xavier University of Louisiana Campus.

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