APA (7th ed.) Citation

Sykes, J. P. (2006). Sleep: Relaxation. Smithsonian Folkways Recordings.

Chicago Style (17th ed.) Citation

Sykes, John P. Sleep: Relaxation. Washington, DC: Smithsonian Folkways Recordings, 2006.

MLA (9th ed.) Citation

Sykes, John P. Sleep: Relaxation. Smithsonian Folkways Recordings, 2006.