TY  - BOOK
AU  - Ward, Diana, 
AU  - Holmes, Nigel, 
AU  - José, Paul, 
ED  - Royal Society for the Protection of Birds.
TI  - The new rivers & wildlife handbook
SN  - 0903138700
PY  - 1993///
CY  - England : 
PB  - KPC Group, 
KW  - ECOLOGIA
KW  - RIOS
KW  - VIDA SALVAJE
ER  -