Ruttner, Franz <br/><br/>
Fundamentals of limnology 
by Franz Ruttner ; translated from the German by D. G. Frey and F.E.J.Fry 
 - 3rd ed. 
 - Toronto  University of Toronto Press  1963 
 - xvi,308p.;  23cm. 
<br/><br/><label>Dewey Class. No.: </label>574.52632  / RUT