Wrigley, Denis,  <br/><br/>
The living world of the river 

 - 31 pages :   illustrations ;   21 cm 
<br/><br/><label>ISBN: </label>0718822021 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Rivers
<br/><br/><label>Dewey Class. No.: </label>551.483