Bardach, John.
Downstream : a natural history of the river from its source to the sea / John Bardach. - New York : Grosset & Dunlap, c1964. - ix, 278 p. : ill. ; 20 cm. - Grosset universal library .
Includes index.
Stream ecology--History.
Rivers--History.
Aquatic biology--History.
Natural history.
Downstream : a natural history of the river from its source to the sea / John Bardach. - New York : Grosset & Dunlap, c1964. - ix, 278 p. : ill. ; 20 cm. - Grosset universal library .
Includes index.
Stream ecology--History.
Rivers--History.
Aquatic biology--History.
Natural history.