Ravel, Peter H. <br/><br/>
Understanding biology 

 - 3rd ed. 
 - Boston :  McGraw-Hill,  1995. 
 - (various paging) :  ill. (pictures) ; 
<br/><br/>Includes index 
<br/><br/><label>ISBN: </label>0697222136 
<br/><br/><label>LC Class. No.: </label>QH308.2  / R19 1995