AU  - PAULL,JOHN
AU  - PAULL,DOROTHY
TI  - LIGHT
T2  - A LADYBIRD SCIENCE BOOK, SERIES 621
SN  - 0721406562
U1  - 535/PAU 
PY  - 1982///
CY  - LOUGHBOROUGH
PB  - LADYBIRD BOOKS LTD.
KW  - SCIENCE
KW  - LIGHT
ER  -