Oosting, Henry John <br/><br/>
The study of plant communities  an introduction to plant ecology. 

 - San Francisco  W. H. Freeman  1955. 
 - vii,440 p.  illus., maps. 
<br/><br/>Includes bibliographies. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Botany--Ecology.<br/>Plant communities