Stiens, G. (1983). On the Future of Spatial and Settlement Structures: Long-Term Projections of Developments in the Federal Republic of Germany.
Citazione stile Chigago Style (17a edizione)Stiens, Gerhard. On the Future of Spatial and Settlement Structures: Long-Term Projections of Developments in the Federal Republic of Germany. Bonn, 1983.
Citatione MLA (8a ed.)Stiens, Gerhard. On the Future of Spatial and Settlement Structures: Long-Term Projections of Developments in the Federal Republic of Germany. 1983.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.