| Título |
Computer assisted cartography and land use policy ;European Conference of Ministers Responsible for Regional Planning, Committee of Experts on Cartography, Statistics and Terminology, VIth European Seminar, november 18-21st, 1986 Committee of Experts on Cartography, Statitstics and Terminology, VIth European Seminar, Barcelona, Spain, november 18-21st, 1986 ;
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