Koestler, Arthur <br/><br/>
The watershed  a biography of Johannes Kepler. 
Foreword by John Durston. Illustrated by R. Paul Larkin. 
 - Garden City, N.Y.  Anchor Books  1960. 
 - 280 p.  illus.  18 cm. 
 - Science study series, S16 .
<br/><br/> "From The sleepwalkers." 
<br/><br/><label>LCCN: </label>60013537 /L/r84 
<br/><br/><label>Subjects--Personal Names: </label><br/>Kepler, Johannes, 1571-1630. 
<br/><br/><label>LC Class. No.: </label>QB36.K4  / K6 
<br/><br/><label>Dewey Class. No.: </label>925.2