Kittelsen, T., & Borge, P. E. (1998). Troll. N W Damm & Son.
Lua i Stíl Chicago (17ú heag.)Kittelsen, Th, agus Per Erik Borge. Troll. Oslo: N W Damm & Son, 1998.
Lua MLA (9ú heag.)Kittelsen, Th, agus Per Erik Borge. Troll. N W Damm & Son, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.