20210628              frey50         <br/><br/>
 = [Lisboa] 
<br/><br/><label>LCCN: </label>9722705156 
<br/><br/><label>Subjects--Personal Names: </label><br/>Frege, Ludwig Gottlob, 1848-1925
<br/><br/><label>Subjects--Corporate Names: </label><br/>Aritmética