Williams, John <br/><br/>
Observations of comets 
John Williams    
 - London  Strangeways and Walden  1871 
 - xxxii, 124p. 
<br/><br/> plates 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Comets<br/>Planetary systems
<br/><br/><label>Universal Decimal Class. No.: </label>523.64  / WIL