作者:Organized by the Public Health Engineering Section, Department of Civil Engineering, University of Durham, King's College, Newcastle upon Tyne 14-19 September, 1959 ; edited by Peter C. G. isaac.
Organized by the Public Health Engineering Section, Department of Civil Engineering, University of Durham, King's College, Newcastle upon Tyne 14-19 September, 1959 ; edited by Peter C. G. isaac.