Science insights:  Exploring living things 
by Addison Wesley 
 - Texas ed. 
 - Texas  Addison Wesley  1982 
 - 654p. 
<br/><br/><label>ISBN: </label>0-201-86125-9 
<br/><br/><label>LC Class. No.: </label>QH 308.5  / .W74 1982