View all 0 notes for Ion 4.2 - leerwerkboek, written by Annie Gilis, Karolien Loots. All Ion 4.2 - leerwerkboek notes, flashcards, summaries and study guides are written by your fellow students or tutors. Get yourself a Ion 4.2 - leerwerkboek summary or other study material that matches your study style perfectly, and studying will be a breeze.