TY - CHAP A1 - Bocquier, P. A1 - Traoré, S. T1 - Migration and urbanization in West Africa: Methodological issues in data collection and inference Y1 - 1998 A3 - Bilsborrow, R.E T2 - Migration, urbanization, and development: New directions and issues (Proceedings of the Symposium on Internal Migration and Urbanization in Developing Countries, January 22-24, 1996) CY - New York PB - United Nations Population Fund and Kluwer Academic Publishers SP - 249 EP - -273 ER -