Bord Scannán na hÉireann, Twentieth Century Fox Home Entertainment, Inc, Carney, J., Hansard, G., & Irglová, M. (2007). Once. 20th Century Fox Home Entertainment.
Cita Chicago Style (17a ed.)Bord Scannán na hÉireann, Inc Twentieth Century Fox Home Entertainment, John Carney, Glen Hansard, y Markéta Irglová. Once. Culver City, Calif.: 20th Century Fox Home Entertainment, 2007.
Cita MLA (8a ed.)Bord Scannán na hÉireann, et al. Once. 20th Century Fox Home Entertainment, 2007.
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