Gaya APA

Torrie, R, G, D, S, ;, J, H. (1981). Principles and procedures of statistics: a biometrical approach (ed. 2). : .

Gaya MLA

Torrie, Robert, G., D., Steel, ;, James, H.. "Principles and procedures of statistics: a biometrical approach". ed. 2 : , 1981. Text.