Curtis, Helena <br/><br/>
Biology 
By Helena Curtis 
 - Fourth Edition 
 -  Worth Publishers, Inc.  1983 
 - 1159 pages, 25 cm. 
<br/><br/> includes glossary, acknowledgements & index 
<br/><br/><label>ISBN: </label>0-87901-186-6 
<br/><br/><label>Dewey Class. No.: </label>574 C94