Spellerberg, Ian F. <br/><br/>
Ecological Evaluation for Conservation / 
Ian F. Spellerberg. 
 - London :  E. Arnold,  c1981. 
 - 59 p. :  ill. ;  22 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0713128232 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology. --Environmental protection.
<br/><br/><label>Dewey Class. No.: </label>577  / SPE 1981