Heading John <br/><br/>
Introduction to Phase Integral Methods 

 - New York  Dover Publications  2013 
 - 160 
<br/><br/><label>ISBN: </label>9780486497426 
<br/><br/><label>Subjects--Topical Terms: </label><br/> heading john<br/>phase integral
<br/><br/><label>Dewey Class. No.: </label>515.364 HEA