Institution of Civil Engineers (Great Britain) & British Geotechnical Society. (1979). Clay fills: Proceedings of the conference. Institution of Civil Engineers.

Institution of Civil Engineers (Great Britain) and British Geotechnical Society. Clay Fills: Proceedings of the Conference. London: Institution of Civil Engineers, 1979.

Institution of Civil Engineers (Great Britain) and British Geotechnical Society. Clay Fills: Proceedings of the Conference. Institution of Civil Engineers, 1979.