Παραπομπή APA

Berry, B. J. L., & Horton, F. E. (1970). Geographic perspectives on urban systems: With integrated readings. Englewood Cliffs, N.J: Prentice-Hall.

Παραπομπή Chicago Style

Berry, Brian Joe Lobley, and Frank E. Horton. Geographic Perspectives On Urban Systems: With Integrated Readings. Englewood Cliffs, N.J: Prentice-Hall, 1970.

Παραπομπή MLA

Berry, Brian Joe Lobley, and Frank E. Horton. Geographic Perspectives On Urban Systems: With Integrated Readings. Englewood Cliffs, N.J: Prentice-Hall, 1970.

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