TY  - BOOK
AU  - AITCHISON,Martin
AU  - Martyn Andrews
AU  - Richard Berridge
AU  - Sue Barclay
TI  - Looking At Structures 14: : Young Scientist 14 
SN  - 0-7166-6303-1
U1  - 032. 
PY  - 1994///
CY  - London
PB  - World Book International
KW  - 0
KW  - Grade 7-9
ER  -