Cita APA (7a ed.)

Hebbert, M., & Hansen, J. C. (1990). Unfamiliar territory: The reshaping of European geography. Avebury.

Cita Chicago Style (17a ed.)

Hebbert, Michael, y Jens Christian Hansen. Unfamiliar Territory: The Reshaping of European Geography. Aldershot [etc.]: Avebury, 1990.

Cita MLA (9a ed.)

Hebbert, Michael, y Jens Christian Hansen. Unfamiliar Territory: The Reshaping of European Geography. Avebury, 1990.