Lock, Clara Beatrice Muriel,  1914- <br/><br/>
Modern maps and atlases :  an outline guide to twentieth century production / 
C. B. Muriel Lock. 
 - London :  Clive Bingley,  1969. 
 - 619 p. ;  23 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>6851570720 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cartography.