Department of Scientific and Industrial Research. (1939). Report of the Committee of the privy council for scientific and industrial research for the year 1937-38. His Majestys Stationery Office.

Department of Scientific and Industrial Research. Report of the Committee of the Privy Council for Scientific and Industrial Research for the Year 1937-38. London: His Majestys Stationery Office, 1939.

Department of Scientific and Industrial Research. Report of the Committee of the Privy Council for Scientific and Industrial Research for the Year 1937-38. His Majestys Stationery Office, 1939.