NORC-GSS cumulative data file 1972-2006Roper Center for Public Opinion Research, National Data Program for the Social Sciences, NORC (Organization) · First published 2006Open the Tome
NORC-GSS cumulative data file 1972-2000NORC (Organization), Roper Center for Public Opinion Research · First published 2001Open the Tome
Sample design, sampling variance, and estimation procedure for the National Ambulatory Medical Care SurveyNational Center for Health Statistics (U.S.), NORC (Organization) · First published 1988Open the Tome
High school and beyond, 1980 senior cohort third follow-up (1986)Penny A. Sebring, C. Dennis Carroll, NORC (Organization), United States. Office of Educational Research and Improvement. Center for Statistics · First published 1987Open the Tome
High school and beyond, 1980 sophomore cohort third follow-up (1986)Penny A. Sebring, NORC (Organization) · First published 1987Open the Tome
