Spellerberg, Ian F. <br/><br/>
Ecological evaluation for conservation / 
by Ian F. Spellerberg 
 - London :  Edward Arnold,  1981 
 - 59 p. ;  22 cm. 
 - The Institute of biology's studies in biology ; no. 133 .
<br/><br/> Includes index 
<br/><br/>Bibliography : p. (60) 
<br/><br/><label>ISBN: </label>0713128232 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology<br/>Ecological surveys<br/>Nature conservation