Cita APA (7a ed.)

Hansen, I. L., & Wickham, C. (2000). The long Eight Century. Brill.

Cita Chicago Style (17a ed.)

Hansen, Inge Lyse, y Chris Wickham. The Long Eight Century. Lieden: Brill, 2000.

Cita MLA (9a ed.)

Hansen, Inge Lyse, y Chris Wickham. The Long Eight Century. Brill, 2000.