(1975). Survey data for trend analysis: An index to repeated questions in U. S. national surveys held by the Roper Public Opinion Research Center.
Chicago Style (17th ed.) CitationSurvey Data for Trend Analysis: An Index to Repeated Questions in U. S. National Surveys Held by the Roper Public Opinion Research Center. Williamstown, Mass, 1975.
MLA (9th ed.) CitationSurvey Data for Trend Analysis: An Index to Repeated Questions in U. S. National Surveys Held by the Roper Public Opinion Research Center. 1975.
Warning: These citations may not always be 100% accurate.