Niebuhr, A. (2000). Convergence and the Effects of Spatial Interaction.
Cita Chicago (17th ed.)Niebuhr, Annekatrin. Convergence and the Effects of Spatial Interaction. Hamburg, 2000.
Cita MLA (8th ed.)Niebuhr, Annekatrin. Convergence and the Effects of Spatial Interaction. 2000.
Atenció: Aquestes cites poden no estar 100% correctes.