TY  - BOOK
AU  - National Physical Laboratory, Scientific and Industrial  Research (Dept. of-)
ED  - National Physical Laboratory, Scientific and Industrial  Research (Dept. of-)
TI  - Report 1940-1945. London
U1  - D6,9 
PY  - 1952///
CY  - London
PB  - Her Majesty's Stationery Office       
ER  -