Walker, Gordon. <br/><br/>
Astronomical observations : an Optical perspective /  
by Gordon Walker. 
 - /  
 - New York,N. Y-10011 :   Cambridge University Press ,   19987 
 - xii, 347p :  
<br/><br/><label>ISBN: </label>0 521 33907 3 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Physics
<br/><br/><label>Dewey Class. No.: </label>CogB9  / M7;1