Baitsall,G.A <br/><br/>
Science in progress. 

 - U.S.A  Yale university press  1953 
 -  illustrations  24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science;Research;Research.;Science.;Sciences;Recherche;Research.;Science.
<br/><br/><label>Dewey Class. No.: </label>506.273