Goursat Edouard <br/><br/>
Variation Of Solutions Partial Differential Equations of The Second Prder  A Course In Mathematical Analysis Vol III pART One 
/ by Edouard Goursat 
 - New York  Dover Publications Inc.  1964 
 - 329p. 
<br/><br/><label>Dewey Class. No.: </label>515.353  / GOU/V