Smoothey, Marion. <br/><br/>
Let's Investigate / 
Marion Smoothey 
 - New York :  Marshall Cavendish,  1993 
 - 11 V. :  ill 
 - Let's Investigate .
<br/><br/><label>ISBN: </label>1854354639 (set) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>General works.
<br/><br/><label>LC Class. No.: </label>Ref QA76  / S658 L6 1993