TY  - BOOK
AU  - Ritchie, D.D
AU  - Carola, R
TI  - Biology: study guide
SN  - 020063379
AV  - DUCE QH308.2R57 
PY  - 1979///
CY  - London
PB  - Addison-Wesley Publishing
KW  - Science
KW  - Biology
N1  - Includes index
ER  -