Παραπομπή APA

Levy, P. S., & Lemeshow, S. (1999). Sampling of populations: Methods and applications (3rd ed.). New York: Wiley.

Παραπομπή Chicago Style

Levy, Paul S., and Stanley Lemeshow. Sampling of Populations: Methods and Applications. 3rd ed. New York: Wiley, 1999.

Παραπομπή MLA

Levy, Paul S., and Stanley Lemeshow. Sampling of Populations: Methods and Applications. 3rd ed. New York: Wiley, 1999.

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