Gaya APA

G, S, R., H., T, J. (1981). Principles And Procedures Of Statistics A Biometrical Approach . London: McGraw-Hill International Book Company.

Gaya MLA

G, Steel, Robert., H., Torrie, James. "Principles And Procedures Of Statistics A Biometrical Approach". London: McGraw-Hill International Book Company, 1981. Text.