APA

Snedecor G. W., Cochran W. G. & Iowa State University Press. (1974). Statistical methods. Ames: Iowa State University Press.

Chicago

Snedecor George W, Cochran William G and Iowa State University Press. 1974. Statistical methods. Ames: Iowa State University Press.

Harvard

Snedecor G. W., Cochran W. G. and Iowa State University Press. (1974). Statistical methods. Ames: Iowa State University Press.

MLA

Snedecor George W, Cochran William G and Iowa State University Press. Statistical methods. Ames: Iowa State University Press. 1974.