Cita APA (7a ed.)

Kittelsen, T., & Borge, P. E. (1998). Troll. N W Damm & Son.

Cita Chicago Style (17a ed.)

Kittelsen, Th, y Per Erik Borge. Troll. Oslo: N W Damm & Son, 1998.

Cita MLA (9a ed.)

Kittelsen, Th, y Per Erik Borge. Troll. N W Damm & Son, 1998.