Keene, C. (2007). Nancy Drew Girl Detective: Trails of Treachery No. 25. Aladdin Paperbacks.
Chicago-čujuhus (17. p.)Keene, Carolyn. Nancy Drew Girl Detective: Trails of Treachery No. 25. New York: Aladdin Paperbacks, 2007.
MLA-čujuhus (9. p.)Keene, Carolyn. Nancy Drew Girl Detective: Trails of Treachery No. 25. Aladdin Paperbacks, 2007.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.