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23.08.2014On April 22-23, 1988, approximately 432,000 gallons of San Joaquin Valley crude oil spilled from ...
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01.09.1986
Survey Questions is a highly readable guide to the principles of writing survey questions. The au...
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01.03.1996
`Questions and Answers in Attitude Surveys makes an enormous contribution to the field of survey ...
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13.10.2004
On April 22-23, 1988, approximately 432,000 gallons of San Joaquin Valley crude oil spilled from ...
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23.06.2004
The definitive resource for survey questionnaire testing and evaluationOver the past two decades...
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01.12.2017
Preguntas y respuestas en encuestas de actitud : experimentos con formatos de preguntas, redacció...
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