Welte,Arden F <br/><br/>
Your Science Fair: An Opportunity For youth A Guidebook To Successful Science Exhibits 

 - Minnesota:  Burgess Publishing Company,  1962. 
 - iii,161p.;  28cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Natural sciences and mathematics
<br/><br/><label>Dewey Class. No.: </label>500.074  / WEL