Freedman, D., Pisani, R., & Purves, R. (1998). Statistics (3rd ed.). W. W. Norton & Co..
Chicago Style (17th ed.) CitationFreedman, David, Robert Pisani, and Roger Purves. Statistics. 3rd ed. New York: W. W. Norton & Co., 1998.
MLA (9th ed.) CitationFreedman, David, et al. Statistics. 3rd ed. W. W. Norton & Co., 1998.
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