Niebuhr, A. (2000). Convergence and the Effects of Spatial Interaction.
Chicago-Zitierstil (17. Ausg.)Niebuhr, Annekatrin. Convergence and the Effects of Spatial Interaction. Hamburg, 2000.
MLA-Zitierstil (8. Ausg.)Niebuhr, Annekatrin. Convergence and the Effects of Spatial Interaction. 2000.
警告：这些引文格式不一定是100％准确.