Richard A ApostleRichard A. Apostle is Emeritus Professor in the Department of Sociology and Social Anthropology at Dalhousie University. Charles Y. Glock is Professor Emeritus of Sociology at the University of California, Berkeley. At the time of origial publication Thomas Piazza was the principal survey statistician at the Survey Research Center at the University of California, Berkeley and Marijean Suelzle was an Assistant Professor of Sociology, Northwestern University. Read More Read Less