Cita APA (7a ed.)

Valenza, J. K., & Johnson, D. (2009). Things that Keep Us up at Night.

Cita Chicago Style (17a ed.)

Valenza, Joyce Kasman, y Doug Johnson. Things That Keep Us Up at Night. 2009.

Cita MLA (9a ed.)

Valenza, Joyce Kasman, y Doug Johnson. Things That Keep Us Up at Night. 2009.