Simson, Otto Georg von,  1912- <br/><br/>
Sacred fortress :  Byzantine art and statecraft in Ravenna / 
by Otto Georg von Simson 
 - Princeton, N.J. :  The University Press,  1987 
 - xv, 149 p., [48] p. of plates :  ill. ;  29 cm. 
<br/><br/><label>ISBN: </label>0691040389 :  PND 40.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mosaics, Byzantine--Themes, motives--Italy--Ravenna<br/>Mosaics--Themes, motives--Italy--Ravenna
<br/><br/><label>Dewey Class. No.: </label>723.20945