lloyd, J.R. <br/><br/>
Man and the ecosystem./ 
By J.R.Lloyd. 
 - London :  Macmillan Education,  1980. 
<br/><br/>Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology
<br/><br/><label>LC Class. No.: </label>QH541  / LLO 1980