Cita APA (7a ed.)

Christaller, W., & Baskin, C. W. (1966). Central places in southern germany. Prentic-Hall.

Cita Chicago Style (17a ed.)

Christaller, Walter, y Carlisle W. Baskin. Central Places in Southern Germany. Englewood Cliffs, N.J.: Prentic-Hall, 1966.

Cita MLA (9a ed.)

Christaller, Walter, y Carlisle W. Baskin. Central Places in Southern Germany. Prentic-Hall, 1966.