TY  - BOOK
AU  - Andrade,E.N.da C., x
AU  - x
TI  - An approach to modern physics: x
SN  - x
U1  - 539/ANA 
PY  - 1962///
CY  - Lond
PB  - E.L.B.S.
KW  - Physics
N1  - x
ER  -