Gracyk, T. (1999). Valuing and Evaluating Popular Music. The Journal of Aesthetics and Art Criticism.
Lua i Stíl Chicago (17ú heag.)Gracyk, Theodore. "Valuing and Evaluating Popular Music." The Journal of Aesthetics and Art Criticism 1999.
Lua MLA (8ú heag.)Gracyk, Theodore. "Valuing and Evaluating Popular Music." The Journal of Aesthetics and Art Criticism, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.