@inbook{Manning2007,
author = {Manning, W.D. and Bulanda, R.E.},
title= {Cohabitation and measurement of family trajectories},
year = {2007},
editor = {Hofferth, S. L.},
editor = {Casper, L. M. },
booktitle = {Handbook of Measurement Issues in Family Research},
address = {Mahwah, NJ},
publisher = {Lawrence Erlbaum Associates},
pages = {199--219},
}