TY - JOUR A1 - Heaton, T.B. A1 - Lichter, D. A1 - Amoateng, A. T1 - The timing of family formation: Rural-urban differentials in first intercourse, childbirth, and marriage Y1 - 1989 JF - Rural Sociology VL - 54 IS - 1 SP - 1 EP - -16 ER -