Prescott, J. R. V. (1972). Political geography. Methuen.
Cita Chicago (17th ed.)Prescott, J. R. V. Political Geography. London: Methuen, 1972.
Cita MLA (9th ed.)Prescott, J. R. V. Political Geography. Methuen, 1972.
Atenció: Aquestes cites poden no estar 100% correctes.