Pollock, R. (1975). Bridgeforms: Piano. Mobart Music Publications.
Lua i Stíl Chicago (17ú heag.)Pollock, Robert. Bridgeforms: Piano. N.Y: Mobart Music Publications, 1975.
Lua MLA (9ú heag.)Pollock, Robert. Bridgeforms: Piano. Mobart Music Publications, 1975.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.