TY - CHAP A1 - Wu, L.L. A1 - Bumpass, L. A1 - Musick, K. T1 - Historical and life course trajectories of nonmarital childbearing Y1 - 2001 A3 - Wu, L.L. A3 - Wolfe, B. T2 - Out of Wedlock: Causes and Consequences of Nonmarital Fertility CY - New York PB - Russell Sage Foundation SP - 3 EP - -48 ER -