Franklin

MLA

Ullmann, Linn, and Tiina Nunnally. Before You Sleep. New York: Viking, 1999.

APA

Ullmann, L., & Nunnally, T. (1999). Before you sleep. New York: Viking.

Chicago

Ullmann, Linn, and Tiina Nunnally. Before You Sleep. New York: Viking, 1999.