Porter, T. M. (2004). Karl Pearson: The scientific life in a statistical age. Princeton University Press.
Chicago Style (17th ed.) ZitazioaPorter, Theodore M. Karl Pearson: The Scientific Life in a Statistical Age. Princeton: Princeton University Press, 2004.
MLA (9th ed.) ZitazioaPorter, Theodore M. Karl Pearson: The Scientific Life in a Statistical Age. Princeton University Press, 2004.
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