Keene, C. (2013). Nancy Drew Diaries: Once Upon a Thriller No. 4. Aladdin Paperbacks.
Chicago-čujuhus (17. p.)Keene, Carolyn. Nancy Drew Diaries: Once Upon a Thriller No. 4. New York: Aladdin Paperbacks, 2013.
MLA-čujuhus (9. p.)Keene, Carolyn. Nancy Drew Diaries: Once Upon a Thriller No. 4. Aladdin Paperbacks, 2013.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.