General Social Survey, 1972-2000: Cumulative Codebook. Chicago: National Opinion Research Center. Retrieved 10/1/09 from http://www.norc.org/nr/rdonlyres/21c53aac-1267-43b6-a915-a38857dc9d63/1304/introduction.pdf (2001)

by monstersandcritics comnewsbusinessnewsarticle1447427 phpixzz0Kgk10Y2t&C Davis, J A, T W Smith, P V Marsden
Venue:American Journal of Orthopsychiatry