00320nam a2200097Ia 4500082002600000100009100026245007100117260002300188300000600211500000500217  a658.99080942bG786.SR  aGreat Britain & Ireland. Environment, Department of Research, Directorate General of-.  aSurvey of research and development for the construction industryb  aLondonbHMSOc1972  a   a