Gregory, John,  1938 Mar. 2- <br/><br/>
Quadratic form theory and differential equations/ 
John Gregory. 
 - New York:  Academic Press,  1980. 
 - xii, 237 p.:  ill.;  24 cm. 
 - Mathematics in science and engineering,  v. 152. .
<br/><br/> Includes index. 
<br/><br/>Bibliography: p. 231-233. 
<br/><br/><label>ISBN: </label>0123014506 
<br/><br/><label>LCCN: </label>80000520 //r92 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Forms, Quadratic.<br/>Differential equations, Partial.<br/>Calculus of variations.
<br/><br/><label>Dewey Class. No.: </label>515.35  / G822q