Cita APA (7th ed.)

Weinberg, J., & Marrucchi, E. (2012). Happy birthday, princess! Random House.

Cita Chicago (17th ed.)

Weinberg, Jennifer, i Elisa Marrucchi. Happy Birthday, Princess! New York: Random House, 2012.

Cita MLA (8th ed.)

Weinberg, Jennifer, i Elisa Marrucchi. Happy Birthday, Princess! Random House, 2012.