TY  - BOOK
AU  - Howard Edgar
TI  - Nuffield secondary science: Theme 4 Harnessing energy 
T2  - Schools Council research studies
SN  - 0333168658 :
U1  - 507/.12/42 
PY  - 1974///
CY  - London
PB  - Macmillan
KW  - Science
KW  - Great Britain
N1  - 

ER  -