Science Primers / 

 - London :  John J. Griffin and Sons,   
 - 113 p.;  23 cm.  00 tk. 
<br/><br/><label>Source: </label>
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sciences
<br/><br/><label>Dewey Class. No.: </label>500