Christaller, W., & Baskin, C. W. t. (1966). Central places in southern Germany. Prentice-Hall.
Chicago Style (17. basım) AtıfChristaller, Walter, ve Carlilsle Wj\hiteford tr Baskin. Central Places in Southern Germany. Englewood Cliffs, N.J: Prentice-Hall, 1966.
MLA (9th ed.) AtıfChristaller, Walter, ve Carlilsle Wj\hiteford tr Baskin. Central Places in Southern Germany. Prentice-Hall, 1966.
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