Davis, Ralph  1915- <br/><br/>
A commercial revolution; English overseas trade in the seventeenth a nd eighteenth centuries 
/ Ralph Davis 
 - London :  Historical Association ,  1967 
 - 24 p. ;  22 cm 
 - Historical Association, London. General series;  no. 64 .
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Great Britain--Commercial--Historical
<br/><br/><label>Dewey Class. No.: </label>906.2421