Life in lakes and rivers
574.92942
M114L,2 Macan, T. T. and Worthington, E. B.
Life in lakes and rivers
-- London : Collins , 1968
89388 xxxii, 272p.:ill.
Fresh-water biology-Great Britain
M114L,2 Macan, T. T. and Worthington, E. B.
Life in lakes and rivers
-- London : Collins , 1968
89388 xxxii, 272p.:ill.
Fresh-water biology-Great Britain