Hill, I. (2004). Ursula, under: Novel (First edition.). Penguin books.
Chicago-čujuhus (17. p.)Hill, Ingrid. Ursula, Under: Novel. First edition. New York: Penguin books, 2004.
MLA-čujuhus (9. p.)Hill, Ingrid. Ursula, Under: Novel. First edition. Penguin books, 2004.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.