Jeffreys, Harold. <br/><br/>
Methods of mathematical physics / 
by Sir Harold Jeffreys and Bertha Swirles (Lady Jeffreys). 
 - 3rd ed., reprinted 1988. 
 - London :  Cambridge University Press,  1988. 
 - x, 718 p. :  ill. ;  23 cm. 
<br/><br/> Includes index. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0521097231 (pbk) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematical physics.