@inbook {9992, title = {Economic and Educational Change and the Decline in Black Marriages}, booktitle = {The Urban Underclass}, year = {1991}, publisher = {Brookings}, organization = {Brookings}, url = {http://www.brookings.edu/press/Books/1991/theurbanunderclass.aspx}, author = {Christopher Winship and Robert D. Mare}, editor = {Christopher Jencks and Paul Peterson} }