Who Live Alone.
Rural sociology appears to be an area of specialization within the broader field of sociology.
References in paper selected Andrews, F., J. N. Morgan, J. A. Sonquist, and L. Klem 1973 Multiple Classification Analysis . This is a report on a computer program for multiple regression using categorical predictions. Who Head Families. This was referenced as a more detailed explanation of the sampling methods employed in the study. Duncan, Greg J. 1984 Years of Poverty, Years of Plenty .