Wetzel, Robert G.
Limnology / Robert G. Wetzel. - Philadelphia : Saunders, c1975. - xii, 743 p. : ill.
0721692400
Limnology.
Fresh water biology.
Limnology / Robert G. Wetzel. - Philadelphia : Saunders, c1975. - xii, 743 p. : ill.
0721692400
Limnology.
Fresh water biology.