Webb,Stephen <br/><br/>
Measuring the universe: the cosmological distance ladder / 
Webb,Stephen. 
 - Chichester:  Praxis Publishing,  1999. 
 - xvi,342p;25cm 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>1852331062 
<br/><br/><label>Dewey Class. No.: </label>523.1 WEB