1. Crawshaw GH, Carpet Manufacture, Christchurch NZ, WRONZ Developments, in press.
2. Crawshaw GH, ‘Textile Floorcoverings’, Textile Progress, The Textile Institute, Manchester, in press.
3. Feng Lui, ‘Novel techniques for manufacturing hand knotted/woven carpet’, PhD Thesis, Lincoln University, New Zealand, 2000.
4. ‘Textile floorcoverings: The Usefulness Index and its testing. Part 1: Walking comfort; Part 2: The action of walking’;Herzog;Text. Inst. and Industry,1971
5. Ingham PE, ‘The role of wool carpets in controlling indoor air pollution’, Proc. Tifcon'94, The Textile Institute, Manchester, 1994.