Purcell, H., & Keil, K. (1991). A trio of catches: 3- part, SAB and piano. Thomas House Pub.
Lua i Stíl Chicago (17ú heag.)Purcell, Henry, agus Kevin Keil. A Trio of Catches: 3- Part, SAB and Piano. [S.l.]: Thomas House Pub, 1991.
Lua MLA (9ú heag.)Purcell, Henry, agus Kevin Keil. A Trio of Catches: 3- Part, SAB and Piano. Thomas House Pub, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.