Jeffreys, Harold,  1891-1989. <br/><br/>
Methods of mathematical physics / 
by Sir Harold Jeffreys and Bertha Swirles, Lady Jeffreys. 
 - 3rd ed. 
 - Cambridge [Eng.] :  University Press,  1956 [Reprinted 1972] 
 - 714 p. :  ill. ;  27 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematical physics.<br/>Mathematics.
<br/><br/><label>Dewey Class. No.: </label>530.15  / JEM 1972