Cita APA (7th ed.)

Christaller, W. (1966). Central places in Southern Germany. Prentice - Hall.

Cita Chicago (17th ed.)

Christaller, Walter. Central Places in Southern Germany. Englewood .Cliffs N. J.: Prentice - Hall, 1966.

Cita MLA (9th ed.)

Christaller, Walter. Central Places in Southern Germany. Prentice - Hall, 1966.