AU  - Witt,William De  .
TI  - Biology Of The cell An Evolutionary Approach / 
SN  - 0 7216 3045 6
U1  - 574.8 
PY  - 1977///
CY  - London
PB  - W.B. Saunders Company , 
KW  - Botany
N1  - NULL
ER  -