Biggs, Jeremy. Wildlife of rivers & lakes / [electronic resource] / Jeremy Biggs.. — New York : : Mallard Press,, 1989.. — 32 p. : : col. ill. ; 28 cm.
At head of title: Oxford Scientific Films.
0792450272 9780792450276
Freshwater ecology--Popular works. Lake ecology--Popular works. River ecology--Popular works. Lake animals. Stream animals.