Null,Manns Vivian. <br/><br/>
study guide to accompany biology. 

 - 3rd  ed. 
 - New york :  Wrth publishers,  1979. 
 - 348  p. ;    cm. 
<br/><br/><label>ISBN: </label> $ 
<br/><br/><label>Subjects--Topical Terms: </label><br/>biology.