Keene, C. (2007). Nancy Drew Girl Detective: Trails of Treachery No. 25. Aladdin Paperbacks.
Citazione stile Chigago Style (17a edizione)Keene, Carolyn. Nancy Drew Girl Detective: Trails of Treachery No. 25. New York: Aladdin Paperbacks, 2007.
Citatione MLA (9a ed.)Keene, Carolyn. Nancy Drew Girl Detective: Trails of Treachery No. 25. Aladdin Paperbacks, 2007.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.