Παραπομπή APA

Levy, P. S. (2009). Solutions manual to accompany sampling of populations: Methods and applications (4th ed.). John wiley.

Παραπομπή Chicago Style

Levy, Paul S. Solutions Manual to Accompany Sampling of Populations: Methods and Applications. 4th ed. New Jersey: John wiley, 2009.

Παραπομπή MLA

Levy, Paul S. Solutions Manual to Accompany Sampling of Populations: Methods and Applications. 4th ed. John wiley, 2009.