Ovitt, George, <br/><br/>
The restoration of perfection :  labor and technology in medieval culture / 
George Ovitt, Jr. 
 - New Brunswick :  Rutgers University Press,  c1987. 
 - xiii, 272 p. ; 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0813512352 : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Technology
<br/><br/><label>Dewey Class. No.: </label>306.360902  / Re