ASSELSTINE,LES <br/><br/>
Sciences Everywhere 
Les Asselstine (at....al) 
 - London  Harcourt Brace  1943 
 - 280p  ill;  27cm 
<br/><br/><label>ISBN: </label>0-7747-05585-2 
<br/><br/><label>LC Class. No.: </label>500  / 22 
<br/><br/><label>Dewey Class. No.: </label>500  / 22