Williams, William Ewart. <br/><br/>
Applications of interferometry 
by W. Ewart Williams. With a preface by O.W. Richardson. 
 - [4th ed.] 
 - London  New York  Methuen  Wiley  [1950] 
 - viii, 104 p.  diagrs.  18 cm. 
 - Methuen's monographs on physical subjects .
<br/><br/>Includes bibliographies. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Interferometers.