Duncan, T. (1995). GCSE physics (3rd ed.). John Murray.
Cita Chicago (17th ed.)Duncan, Tom. GCSE Physics. 3rd ed. London: John Murray, 1995.
Cita MLA (9th ed.)Duncan, Tom. GCSE Physics. 3rd ed. John Murray, 1995.
Atenció: Aquestes cites poden no estar 100% correctes.