Birkhoff , Garrett . <br/><br/>
Ordinary Differential Equation /  Textual Documents 
Garrett Birkhoff and Gian-Carlo Rota. 
 - 4th Edn. / 
 - New York :  John willey & Sons ,  1989. 
 - 399p. ;  20cm.. 
<br/><br/><label>Subjects--Index Terms: </label>Differential Equation G-Mathematics 
<br/><br/><label>Dewey Class. No.: </label>517.38  / Bi 534 Or