Alexander, J. W. (1965). Economic geography (5th printing.). Prentice-Hall.
Cita Chicago Style (17a ed.)Alexander, John W. Economic Geography. 5th printing. Englewood Cliffs, New Jersey: Prentice-Hall, 1965.
Cita MLA (9a ed.)Alexander, John W. Economic Geography. 5th printing. Prentice-Hall, 1965.
Precaución: Estas citas no son 100% exactas.