Campbell, A. Neil et all. <br/><br/>
Biology/  Concepts & Connection. 
Neil, A Campbell et all. 
 - 6th ed. 
 - San Francisco  Pearson education inc.  2009. 
 - xxxvii,781,;  ill.; 
<br/><br/><label>ISBN: </label>0321526503 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology--textbook