TY  - BOOK
AU  - Ditchburn, R. W
TI  - Light
U1  - 535 DIT 
PY  - 1963///, repr., 1967
CY  - London
PB  - Blakie
KW  - Light
N1  - CONTENTS.-V.1. Chapters 1-xii.-v.2. Chapters xiii-xx
ER  -