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- Worster, Larry. 1997. Cecil Effinger: A Colorado Composer. Composers of North America 21. Lanham, Md.: Scarecrow Press. . (en)
- Bono, Ray. 2008. "The Cool, the Cowboyish, the Coy, the Combustible". Liner notes for "Roy Harris: Symphony No. 11". Troy 1042. SACD. (en)
- Boorman, Stanley, and Eleanor Selfridge-Field. 2001. "Printing and Publishing of Music I: Printing". The New Grove Dictionary of Music and Musicians, second edition, edited by Stanley Sadie and John Tyrrell. London: Macmillan Publishers. (en)
- Worster, Lawrence. 2001. "Effinger, Cecil". The New Grove Dictionary of Music and Musicians, second edition, edited by Stanley Sadie and John Tyrrell. London: Macmillan Publishers. (en)
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