TY - BOOK ED - Nuffield Foundation TI - Physics teachers' guide unit 4 : waves and oscillations SN - 140827048 U1 - 530 PY - 1971/// CY - England PB - Nuffield Advanced Science KW - Physics N1 - includes appendices and index ; 1. Waves of many sorts 2. Mechanical waves 3. Mechanical oscillations ER -