APA
Berry B. J. L., Horton F. E., . (1970). Geographic perspectives on urban systems: with integrated readings. Englewood Cliffs: Prentice-Hall.
Chicago
Berry Brian Joe Lobley, Horton Frank E, . 1970. Geographic perspectives on urban systems: with integrated readings. Englewood Cliffs: Prentice-Hall.
Harvard
Berry B. J. L., Horton F. E., . (1970). Geographic perspectives on urban systems: with integrated readings. Englewood Cliffs: Prentice-Hall.
MLA
Berry Brian Joe Lobley, Horton Frank E, . Geographic perspectives on urban systems: with integrated readings. Englewood Cliffs: Prentice-Hall. 1970.