tinbergen, j. (1964). regional planning. the institute of national planning.
Cita Chicago (17th ed.)tinbergen, j. Regional Planning. cairo: the institute of national planning, 1964.
Cita MLA (9th ed.)tinbergen, j. Regional Planning. the institute of national planning, 1964.
Atenció: Aquestes cites poden no estar 100% correctes.