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by Wittgenstein, Ludwig; Hacker, P. M. S.; Schulte, Joachim
by Ludwig Wittgenstein (Late of University of Cambridge, UK ); Editor: P. M. S. Hacker (University of Oxford, UK ); Editor: Joachim Schulte (University of Zurich, Switzerland )
by Bloss, Michael; Ernst, Dietmar; Hacker, Joachim; et al.