Whicher, Olive. <br/><br/>
Projective geometry :  creative polarities in space and time / 
Olive Whicher. 
 - London :  Rudolf Steiner Press,  1971. 
 - 292 p. :  ill.  27 cm. 
<br/><br/> Includes index. 
<br/><br/>Includes bibliographic references. 
<br/><br/><label>ISBN: </label>9781855843790 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geometry, Projective.