Keene, C. (2008). Nancy Drew Girl Detective: Secret Identity Book One No. 33. Aladdin Paperbacks.
Chicago-čujuhus (17. p.)Keene, Carolyn. Nancy Drew Girl Detective: Secret Identity Book One No. 33. New York: Aladdin Paperbacks, 2008.
MLA-čujuhus (9. p.)Keene, Carolyn. Nancy Drew Girl Detective: Secret Identity Book One No. 33. Aladdin Paperbacks, 2008.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.