Gras, Norman Scott Brien,  1884-1956 <br/><br/>
The evolution of the English com market :  from the twelfth to the eighteenth century / 
by Norman Scott Brien Gras 
 - New York :  Russell & Russell,  1967 
 - 498 p. ;  22 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Grain trade--History--United Kingdom<br/>Com laws (Great Briatin)