metcalfe,dull <br/><br/>
modren physics 
dull metcalfe 
 -  1955 
<br/><br/> Rs mean Reading Circle Page 1250-1275 in A-Z Register (Acc. No. Rs1-Rs717)  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Reading Circle
<br/><br/><label>Dewey Class. No.: </label>RS583