APA (7th ed.) Citation

Whitacre, E. (2009). Sleep my child: For unaccompanied SATB chorus. Chester Music.

Chicago Style (17th ed.) Citation

Whitacre, Eric. Sleep My Child: For Unaccompanied SATB Chorus. London: Chester Music, 2009.

MLA (9th ed.) Citation

Whitacre, Eric. Sleep My Child: For Unaccompanied SATB Chorus. Chester Music, 2009.

Warning: These citations may not always be 100% accurate.