1. The environmental life-cycle assessment of four types of floor covering;Potting,1993
2. Environmental life-cycle assessment of products (guide and backgrounds);Heijungs,1992
3. Guidelines for life-cycle assessment: a ‘code of practice’;Consoli,1993
4. More energy consumption figures relating to the prevention and re-use of waste streams;Heijningen,1992
5. Energy consumption figures relating to the prevention and re-use of waste streams;Heijningen,1992