Cita APA

Ager, M. 1., & Yellen, J. (2004). Happy days are here again. New York, NY: Cherry Lane Music.

Citación estilo Chicago

Ager, Milton 1893-1979, y J. Yellen. Happy Days Are Here Again. New York, NY: Cherry Lane Music, 2004.

Cita MLA

Ager, Milton 1893-1979, y J. Yellen. Happy Days Are Here Again. New York, NY: Cherry Lane Music, 2004.