(2006). Motivating Maths at GCSE: Outdoor Trigonometry.
Cita Chicago (17th ed.)Motivating Maths at GCSE: Outdoor Trigonometry. 2006.
Cita MLA (9th ed.)Motivating Maths at GCSE: Outdoor Trigonometry. 2006.
Atenció: Aquestes cites poden no estar 100% correctes.