COCHRAN, W. G., & COX, G. M. (1957). Experimental designs.-- Ed. 2. John Wiley and Sons.

COCHRAN, William G., and Gertrude M. COX. Experimental Designs.-- Ed. 2. New York: John Wiley and Sons, 1957.

COCHRAN, William G., and Gertrude M. COX. Experimental Designs.-- Ed. 2. John Wiley and Sons, 1957.