TY  - BOOK
AU  - NATIONAL PHYSICAL LABORATORY
ED  - NATIONAL PHYSICAL LABORATORY
TI  - Annual report,1984-85
U1  - X9(C).281.N89<N84r, M9 
PY  - 1989///
CY  -  New Delhi 
PB  - NPL         
N1  - Appendix :51-58p
ER  -