Cita APA (7a ed.)

Haverkamp, A., Braun, H., & Mortimer, R. (1992). Medieval Germany 1056-1273 (2nd ed.). Oxford University Press.

Cita Chicago Style (17a ed.)

Haverkamp, Alfred, Helga Braun, y Richard Mortimer. Medieval Germany 1056-1273. 2nd ed. Oxford [etc.]: Oxford University Press, 1992.

Cita MLA (9a ed.)

Haverkamp, Alfred, et al. Medieval Germany 1056-1273. 2nd ed. Oxford University Press, 1992.