TY - CHAP A1 - Casterline, J.B. T1 - Diffusion processes and fertility transition: introduction Y1 - 2001 A3 - Casterline, J.B. T2 - Diffusion Processes and Fertility Transition:: Selected Perspectives CY - Washington, D.C PB - National Academies Press SP - 1 EP - -38 ER -