Sansone, G. Conti, R. <br/><br/>
Non-linear differential equation 

 - New York  Pergamon  1964 
 - v,533p. 
<br/><br/><label>Subjects--Uniform Titles: </label><br/>Non-linear differential equation
<br/><br/><label>Dewey Class. No.: </label>515.3525  / S15N