Christaller, W., & Baskin, C. W. t. (1966). Central places in southern Germany. Prentice-Hall.
芝加哥风格引文Christaller, Walter, 与 Carlilsle Wj\hiteford tr Baskin. Central Places in Southern Germany. Englewood Cliffs, N.J: Prentice-Hall, 1966.
MLA引文Christaller, Walter, 与 Carlilsle Wj\hiteford tr Baskin. Central Places in Southern Germany. Prentice-Hall, 1966.
警告：这些引文格式不一定是100％准确.