Valk, Arnold G. van der <br/><br/>
(The) biology of freshwater wetlands / 
Arnold G. van der Valk 
 -  Oxford University Press  2006 
<br/><br/>20678 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Wetlands<br/>Wetland ecology
<br/><br/><label>LC Class. No.: </label>QH87.3  / Val