TY  - BOOK
AU  - Simpkins, J.
AU  - Williams, J. I.
TI  - Advanced biology
SN  - 0003222764
PY  - 1989///
CY  - London
PB  - Collins Educational
KW  - Biology
KW  - Study and teaching
N1  - Includes index; Recommended text: *AG203 (Agriculture)
ER  -