Cita APA (7a ed.)

Purcell, H., & Keil, K. (1991). A trio of catches: 3- part, SAB and piano. Thomas House Pub.

Cita Chicago Style (17a ed.)

Purcell, Henry, y Kevin Keil. A Trio of Catches: 3- Part, SAB and Piano. [S.l.]: Thomas House Pub, 1991.

Cita MLA (9a ed.)

Purcell, Henry, y Kevin Keil. A Trio of Catches: 3- Part, SAB and Piano. Thomas House Pub, 1991.