Road Research Technical Paper No. 15: Soil Survey Procedure ROAD RESEARCH BOARD. Published: 1949 Total Pages: Get eBook
Report of the Research Council Great Britain. Dept. of Scientific and Industrial Research Published: 1953 Total Pages: 1206 Get eBook
Report - Department of Scientific and Industrial Research Great Britain. Department of Scientific and Industrial Research Published: 1952 Total Pages: 1300 Get eBook