APA

Cast P. C., Cast K., . (2007). Marked. New York: St. Martin's Griffin.

Chicago

Cast P C, Cast Kristin, . 2007. Marked. New York: St. Martin's Griffin.

Harvard

Cast P. C., Cast K., . (2007). Marked. New York: St. Martin's Griffin.

MLA

Cast P C, Cast Kristin, . Marked. New York: St. Martin's Griffin. 2007.