Cita APA (7th ed.)
Berry, B. J., & Horton, F. E. (1970). Geographic Perpectives on Urban Systems: With Integrated Readings. Prentice-Hall.
Cita Chicago (17th ed.)
Berry, Brian J.L, i Frank E. Horton. Geographic Perpectives on Urban Systems: With Integrated Readings. Nueva Jersey, EUA: Prentice-Hall, 1970.
Cita MLA (9th ed.)
Berry, Brian J.L, i Frank E. Horton. Geographic Perpectives on Urban Systems: With Integrated Readings. Prentice-Hall, 1970.
Atenció: Aquestes cites poden no estar 100% correctes.