TY - CHAP A1 - Seltzer, J.A. T1 - Cohabitation and family change Y1 - 2004 A3 - Coleman , M. A3 - Ganong, L.H. T2 - Handbook of contemporary families: Considering the past, contemplating the future CY - Thousand Oaks, CA PB - Sage Publications SP - 57 EP - -78 ER -