Lombaerde, P., Baert, F., & Felcio, T. (2012). The United Nations and the Regions: Third World Report on Regional Integration. Springer Netherlands. https://doi.org/10.1007/978-94-007-2751-9

Lombaerde, Philippe, Francis Baert, and Tnia Felcio. The United Nations and the Regions: Third World Report on Regional Integration. Dordrecht: Springer Netherlands, 2012. https://doi.org/10.1007/978-94-007-2751-9.

Lombaerde, Philippe, et al. The United Nations and the Regions: Third World Report on Regional Integration. Springer Netherlands, 2012. https://doi.org/10.1007/978-94-007-2751-9.