Author - Norman M. Bradburn
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Polls and Surveys: Understanding What they Tell Us (Joint Publication in the Jossey-Bass Social and Behavioral S)
EAN 9781555420987 70.57 USD -
Asking Questions: The Definitive Guide to Questionnaire Design -- For Market Research, Political Polls, and Social and Health Questionnaires (Research Methods for the Social Sciences)
EAN 9780787970888 47.97 USD