Raven, Peter H. <br/><br/>
Understanding biology / 
Peter H. Raven, George B. Johnson 
 - 2nd ed. 
 - St. Louis :  Mosby Year Book,  1991 
 - various pagings :  col. ill. ;  28cm 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>0801625246:  free 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology
<br/><br/><label>Dewey Class. No.: </label>574 RAV