Ruttner, Franz,  1882-1961 <br/><br/>
Fundamentals of limnology / 
Frans Ruttener ; translated by D.G. Frey and F.E.J. Fry 
 - 3rd ed. 
 - Toronto :  University of Toronto Press,  1963 
 - xvi, 295 p. :  ill. (diagrs) ;  24 cm. 
<br/><br/>Includes bibliographical references (p.262-279) 
<br/><br/><label>ISBN: </label>0802020283 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Limnology