Cita APA (7a ed.)

Hybel, N., & Poulsen, B. (2007). The Danish resources c. 1000-1550: Growth and recession. Brill.

Cita Chicago Style (17a ed.)

Hybel, Nils, y Bjørn Poulsen. The Danish Resources C. 1000-1550: Growth and Recession. Leiden ; Boston: Brill, 2007.

Cita MLA (8a ed.)

Hybel, Nils, y Bjørn Poulsen. The Danish Resources C. 1000-1550: Growth and Recession. Brill, 2007.