Ewer, D.W. <br/><br/>
Ecology biology:   Practical Book 2 
D.W. Ewer, & J.B. Hall 
 - Essex  Longman group ltd  1980 
 - vi,138p.:ill.;  Pbk 
<br/><br/><label>ISBN: </label>0582650461 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology<br/>Environmental sciences
<br/><br/><label>LC Class. No.: </label>QH541.E9 1980