Kepler, Johannes <br/><br/>
Harmonies of the world / 
by Johannes Kepler; edited with commentary by Stephen Hawking. 
 - Philadelphia :  Running Press Book Publishers,  c2002. 
 - 92p. ; 23 cm. 
 - On the shoulders of giants ; bk. 5 .
<br/><br/><label>ISBN: </label>0-7624-2018-9 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy--Early work to 1800.