Dunn , Andrew  <br/><br/>
Alexander graham bell : pioneers of science  

 - Wayland :  Engaland ;   1990. 
 - 48 p ; 24cm .  01 
 - 2024-07-18 
<br/><br/><label>ISBN: </label>1852109580 
<br/><br/><label>Nat. Bib. No.: </label>0009969 
<br/><br/><label>Nat. Bib. Agency Control No.: </label>DUN 
<br/><br/><label>Universal Decimal Class. No.: </label>491.94