North, J.D. <br/><br/>
Richard of Wallingford: an edition of his writings with introductions  D.J. North. 

 - Oxford  Clarendon Press  1976 
 - v.1., ill. 
<br/><br/><label>ISBN: </label>198581394 
<br/><br/><label>Dewey Class. No.: </label>508.092  / L74N