TY  - BOOK
AU  - Raven,P.H.
AU  -  Franklin E.R.
AU  -  Helena C.
TI  - Biology of plants
SN  - 0879010541
AV  - DUCE QK471.R25 
PY  - 1971///
CY  - New York
PB  - Worth Publishers
KW  - Botany
N1  - Includes bibliographies and index
ER  -