Articles without a Digital Object Identifier (DOI):
LaFree, Gary and Kriss Drass. 1996. "Effect of Changes in Intraracial Income Inequality and Educational Attainment on Changes in Arrest Rates for African Americans and Whites, 1957-1990." American Sociological Review 61(4). Retrieved July 11, 2014 (http://proxy.lib.csus.edu/login?url=http://search.proquest.com/docview/60056955?accountid=10358).
Articles with a Digital Object Identifier (DOI):
Craig, Peter and John Forbes. 2005. "Social Position and Health: Are Old and New Occupational Classifications Interchangeable?" Journal of Biosocial Science
37(1):89-106. doi.org/10.1017/S0021932003006424