TY  - BOOK
AU  - Sedeen,Margaret
ED  - National Geographic Society (U.S.)
TI  - Great rivers of the world
SN  - 0870445375
AV  - GB1203.2 .G74 1984
U1  - 910.021693 
PY  - 1984///
CY  - Washington, D.C.
PB  - National Geographic Society,
KW  - Rivers
KW  - River life
KW  - Stream ecology
ER  -