Lehn, Barbara. <br/><br/>
What is a scientist? 
Barbara Lehn 
 - ed. 
 - [S.l.]  Millbrook Press  1998 
 - [32] p. 
<br/><br/><label>ISBN: </label>0329159135 0329613464 0761312722 (lib. bdg.) 0761312986 (pbk.)