God's clockmaker   :  Richard of Wallingford and the invention of time  print 

 - enk  Hambledon Continuum  2006 
 - xvii, 441 p. : ill.    24 cm.  xvii, 441 p. : ill. ; 24 cm. 
<br/><br/> John North. 
<br/><br/><label>ISBN: </label>1852855711 (pbk. : a