TY  - BOOK
AU  - Williams, E.W.
AU  - Hall,R
TI  - Luminescence and thelight emitting Diode
U1  - 621.382 
PY  - 1978///
CY  - Oxford
PB  - Pergamon Press
KW  - Luminescence
N1  -  Ref. at the end of each chap
ER  -