The Facts on File dictionary of biology / 
edited by Elizabeth Tootill 
 - 2nd ed. 
 - New York :  Facts on File,  1981 
 - 282 p. :  ill. ;  22 cm. 
<br/><br/><label>ISBN: </label>0871965100 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology--Dictionaries