TY  - BOOK
AU  - Simpkins,J.
AU  - Williams,J.I.
TI  - Advanced biology
SN  - 0713525622
AV  - QH308.2 SIM 
PY  - 1984///
PB  - Bell & Hyman
KW  - Biology
KW  - Organisms
KW  - For schools
N1  - Includes index
ER  -