Sally Chambers. (2004). Wilbie Finds a Friend. Gardners Books.
Cita Chicago (17th ed.)Sally Chambers. Wilbie Finds a Friend. Gardners Books, 2004.
Cita MLA (9th ed.)Sally Chambers. Wilbie Finds a Friend. Gardners Books, 2004.
Atenció: Aquestes cites poden no estar 100% correctes.