Dingle, R B <br/><br/>
Asymptotic expansions: Their derivation and enterpretation 

 - London  Academic Press  1973 
 - xv, 521 p. 
<br/><br/><label>ISBN: </label> PON15.6 
<br/><br/><label>Dewey Class. No.: </label>516.362 D615A