Tryfos, P. (1996). Sampling methods for applied research: Text and cases. John Wiley.
Chicago Style (17th ed.) ZitazioaTryfos, Peter. Sampling Methods for Applied Research: Text and Cases. Nueva York: John Wiley, 1996.
MLA (9th ed.) ZitazioaTryfos, Peter. Sampling Methods for Applied Research: Text and Cases. John Wiley, 1996.
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