TY  - BOOK
AU  - Rzoska,J.
TI  - The Niles: biology of an ancient river 
SN  - 9061930812
PY  - 1976///
CY  - The Hague
PB  - W.Junk B.V.
KW  - Freshwater biology
KW  - Nile river
KW  - Stream ecology
ER  -