TY - RPRT A1 - Ribe, H. A1 - Schultz, T.P. T1 - Migrant and native fertility in Colombia in 1973: Are migrants selected according to their reproductive preferences? Y1 - 1980 UR - http://www.econ.yale.edu/growth_pdf/cdp355.pdf PB - Yale University, Economic Growth Center CY - New Haven IS - Center discussion paper no. 355 ER -