1. Castells, M. (1996). The rise of the network society (Vol. 12). Cambridge, MA: Blackwell.
2. Castles, S., & Kosack, G. (1973). Immigrant workers and class structure in Western Europe. London: Oxford University Press.
3. Castles, S., De Haas, H., & Miller, M. J. (2013). The age of migration: International population movements in the modern world. Basingstoke: Palgrave Macmillan.
4. Cresswell, T. (2006). On the move: mobility in the modern Western world. London: Routledge.
5. Cresswell, T., & Merriman, P. (2008). Geographies of mobilities: Practices, spaces, subjects. London: Ashgate Publishing, Ltd.