Freshwater ecology : principles and applications /
Jeffries, Michael.
Freshwater ecology : principles and applications / Michael Jeffries, Derek Mills - London : Belhaven Press, c1990 - 285 p. : illus, charts
1852931272
Freshwater ecology.
Man--influence On Nature.
574.5263 / J47F
Freshwater ecology : principles and applications / Michael Jeffries, Derek Mills - London : Belhaven Press, c1990 - 285 p. : illus, charts
1852931272
Freshwater ecology.
Man--influence On Nature.
574.5263 / J47F






