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Science in World History by James S. Trefil (Wcs)Sciences 3e Chapter 1-15 by Trefil The Sciences by Trefil EGrade Plus Stand--alone Access for Physics Matters1E by Trefil (Wcs)Sciences Selected Chapters by Trefil (Wcs) Sciences 2E W/ Readings 2E by Trefil Egrade Plus Sa 1 Term Physics Matters 1E by Trefil The Sciences by Trefil Reise in das Innerste der Dinge by Trefil (Wcs)Sciences 2e Upd W/Sg& Chem6e C14 Set by Trefil


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