TY  - BOOK
AU  - Clamp, Alan
TI  - AS biology, units 2 & 3, Edexcel. unit 2 [and] unit 3, exchange, transport and reproduction [and] energy and the environment
SN  - 9780860034704
U1  - 570 CLA 
PY  - 2002///
CY  - London
PB  - Philip Allan Updates
KW  - Life sciences
ER  -