Robertson, R. (2009). Rock of ages.
Lua i Stíl Chicago (17ú heag.)Robertson, Robbie. Rock of Ages. Milwaukee, WI : Hal Leonard Corporation, 2009.
Lua MLA (9ú heag.)Robertson, Robbie. Rock of Ages. 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.