TY  - BOOK
AU  - Ewington, E. J.
AU  - Spencer, J.
TI  - Projects in biology
T2  - Secondary Science Series
SN  - 0710007698
U1  - 574 
PY  - 1981///
CY  - London
PB  - Routledge & Kegan Paul
KW  - Biology
ER  -