Cox, George W <br/><br/>
Laboratory manual of general ecology  / 
George W. Cox 
 - 3a ed. 
 - Dubuque, Iowa  :  Brown,  1978 
 - 232 p. :   ilus. 
<br/><br/><label>ISBN: </label>0-697-04676-1 
<br/><br/><label>LCCN: </label>165600 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecología
<br/><br/><label>Dewey Class. No.: </label>574.5 C69 1978