Cita APA

Nygard, C. J., & Nygard, C. J. (1988). It's time: For mixed voices S.A.B., with piano. Chapel Hill, N.C.: Hinshaw Music.

Citación estilo Chicago

Nygard, Carl J., y Carl J. Nygard. It's Time: For Mixed Voices S.A.B., With Piano. Chapel Hill, N.C.: Hinshaw Music, 1988.

Cita MLA

Nygard, Carl J., y Carl J. Nygard. It's Time: For Mixed Voices S.A.B., With Piano. Chapel Hill, N.C.: Hinshaw Music, 1988.