Czaja, R. (1996). Designing surveys: A guide to decisions and procedures. Pine Forge.
Cita Chicago Style (17a ed.)Czaja, Ronald. Designing Surveys: A Guide to Decisions and Procedures. London: Pine Forge, 1996.
Cita MLA (9a ed.)Czaja, Ronald. Designing Surveys: A Guide to Decisions and Procedures. Pine Forge, 1996.
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