TY  - GEN
AU  - Soman , K
TI  - International system of units
SN  - 9788120336537
U1  - 620.11 
PY  - 2012///
CY  - New Delhi
PB  - PHI Learnning
KW  - SI SYSTEM OF UNITES
KW  - GENERAL PHYSICAL DETA
ER  -