Williams, Janet. <br/><br/>
Biology 11-14 / 
Janet Williams and Chris Workman. 
 - 1st  ed. 
 - Harlow, England :  Pearson Education,  2002. 
 - vi, 231  p. 
<br/><br/><label>ISBN: </label>0582447518 : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology.