Schattschneider, Doris. <br/><br/>
M.C. Escher :  visions of symmetry / 
by Doris Schattschneider ; foreword by Douglas R. Hofstadter. 
 - New ed. 
 - London :  Thames & Hudson,  2005. 
 - xiii, 370 p. :  ill. (some col ;  29 cm. 
<br/><br/> Rev. ed. of: Visions of symmetry, 1990. 
<br/><br/>Includes bibliographical references (p. 357-364) and index. 
<br/><br/><label>ISBN: </label>0500511691 
<br/><br/><label>Subjects--Personal Names: </label><br/>Escher, M. C. (Maurits Cornelis), 1898-1972 --Sources.
<br/><br/><label>Subjects--Topical Terms: </label><br/>Color in art.<br/>Symmetry (Art)