311
S671S
           Snedecor,George W
               Statistical methods applied to experiments in agriculture and biology \ George W Snedecor - 5th - Lowa : Lowa State College Press, 1956.
               xiii, 534p.
                With chapter 17 on sampling by William G Cochran

23917
C19616
                Subjects: Statistics; Non Parametric statistics; Correlation (statistics); Sampling (statistics).