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An Introduction to S and S-Plus by Phil Spector
Modern Applied Statistics With S (Statistics and Computing) by William N. Venables, Brian D. Ripley
Statistical Models in S by John M. Chambers, Trevor J. Hastie (Editor)
Programming with Data: A Guide to the S Language by John M. Chambers
Introductory Statistics with R by Peter Dalgaard
Last modified 22 Jan 2004