Unwin, T. (1992). The place of geography. Longman Scientific & Technical ; Wiley.
Cita Chicago (17th ed.)Unwin, Tim. The Place of Geography. Harlow, Essex, England : New York: Longman Scientific & Technical ; Wiley, 1992.
Cita MLA (9th ed.)Unwin, Tim. The Place of Geography. Longman Scientific & Technical ; Wiley, 1992.
Atenció: Aquestes cites poden no estar 100% correctes.