@inbook{Spiegel1960,
author = {Spiegel, J.},
title= {The resolution of role conflict within the family},
year = {1960},
editor = {Bell, N.W.},
editor = {Vogel, F.},
booktitle = {A modern introduction to the family},
address = {New York},
publisher = {The Free Press},
pages = {391--411},
}