TY  - GEN
AU  - Selvam, A. 
AU  - 
TI  - When and what in physics
SN  - 9788190735902
U1  - 530.09 
PY  - 2007///
CY  - Chennai 
PB  - Alamelumangai Pathippagam
KW  - Physics
N1  - Includes bibliographical references
ER  -