Moser, C. A., & Kalton, G. (1971). Survey methods in social investigation (2nd ed.). Heinemann Educational.
Cita Chicago Style (17a ed.)Moser, Claus Adolf, y Graham Kalton. Survey Methods in Social Investigation. 2nd ed. London: Heinemann Educational, 1971.
Cita MLA (9a ed.)Moser, Claus Adolf, y Graham Kalton. Survey Methods in Social Investigation. 2nd ed. Heinemann Educational, 1971.
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