TY - RPRT A1 - Casper, L. A1 - Brandon, P. A1 - DiPrete, T. A1 - Sanders, S. A1 - Smock, P. T1 - Rethinking change and variation in unions Y1 - 2008 UR - http://www.soc.duke.edu/~efc/Docs/pubs/EFC%20FINAL%20AUG%2018%20complete%20w%20appendice.pdf T3 - Designing new models for explaining family change and variation IS - Final report submitted to the U.S. National Institute of Child Health and Human Development ER -