Barnard, D. ST. P. <br/><br/>
Natural sciences and mathematics 

 - London :  Faber and Faber Limited,  1962 
 - 109p.;  20cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Natural sciences and mathematics
<br/><br/><label>Dewey Class. No.: </label>510.076  / BAR