Evans, David S. <br/><br/>
Observation in modern astronomy / 
David S. Evans 
 - London :  English Universities Press,  1968 
 - 273 p. :  ill. ;  26 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy--Observers' manuals
<br/><br/><label>Dewey Class. No.: </label>522