Welford, W. T. <br/><br/>
Geometrical optics  optical instrumentation 
W. T. Welford                                                
 - Amsterdam  North-Holland  1962 
 - x, 200p. 
 - Undergraduate textbooks in physics; v. 1 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geometrical optics<br/>Optical instrumentation
<br/><br/><label>Universal Decimal Class. No.: </label>535.31  / WEL