Wratten, Stephen D. <br/><br/>
Field and laboratory exercises in ecology 

 - London :  Arnold,  1980 
 - 227 p.  : ilus. 
<br/><br/><label>LCCN: </label>52816 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecología.<br/>Ecología--Manuales de laboratorio.
<br/><br/><label>Dewey Class. No.: </label>574.5  / W7