Gaya APA

Weinberg, G, H., Schumaker, J, A. (1962). Statistics : an Intuitive Approach (2 Ed). California: Brooks/Cole Publishing Company.

Gaya MLA

Weinberg, George, H.., Schumaker, John, A.. "Statistics : an Intuitive Approach". 2 Ed California: Brooks/Cole Publishing Company, 1962. Text.