David mcHuge (2009). Essentials- Electronic products . London: Letts & Lonsdale
David mcHuge (2009). Essentials- Resistant materials . London: Letts & Lonsdale
David mcHuge (2009). Essentials- Product Design . London: Letts & Lonsdale
David mcHuge (2009). Essentials- Resistant materials . London: Letts & Lonsdale
David mcHuge (2009). Essentials- Product Design . London: Letts & Lonsdale