Goursat, Edougard <br/><br/>
A Course in malthematical analysis  vol. 3, pt. 1, variation of solutions partial differential equations of the second order 
Edougard Goursat; translated by Howard G. Bergmann 
 - New York  Dover Publications  1964 
 - x, 329p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential Calculus<br/>Differential Equations<br/>NASA Thesaurus
<br/><br/><label>Universal Decimal Class. No.: </label>519.9  / GOU