Tryfos, P. (1996). Sampling methods for applied research: Text and cases. John Wiley & Sons.
Cita Chicago Style (17a ed.)Tryfos, Peter. Sampling Methods for Applied Research: Text and Cases. New York [etc.]: John Wiley & Sons, 1996.
Cita MLA (9a ed.)Tryfos, Peter. Sampling Methods for Applied Research: Text and Cases. John Wiley & Sons, 1996.
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