Gaya APA

Snedecor, G, W., Cochran, W, G. (1956). Statistical Metods : Apllied to Experiment in Agricultural and Biology (-). Lowa USA: The lowa State Universty Press.

Gaya MLA

Snedecor, George, W.., Cochran, William, G.. "Statistical Metods : Apllied to Experiment in Agricultural and Biology". - Lowa USA: The lowa State Universty Press, 1956. Text.