It

MLA

Christensen, Inger, Susanna Nied, and Anne Carson. It. New York: New Directions, 2006.

APA

Christensen, I., Nied, S., & Carson, A. (2006). It. New York: New Directions.

Chicago

Christensen, Inger, Susanna Nied, and Anne Carson. It. New York: New Directions, 2006.