Cita APA (7th ed.)

Gregory, P. (2008). The constant princess (Touchstone ed.). Simon & Schuster.

Cita Chicago (17th ed.)

Gregory, Philippa. The Constant Princess. Touchstone ed. New York: Simon & Schuster, 2008.

Cita MLA (9th ed.)

Gregory, Philippa. The Constant Princess. Touchstone ed. Simon & Schuster, 2008.