G. Sansone Non-linear differential equations. Rev Ed - Rev Ed - New York Macmillan 1964 - 533p G. Sansone; R. Conti & A. H Diamond: Non-linear differential equations. Rev Ed. (Rev Ed) New York. Macmillan, 1964.--(517.382SAN) ENGLISH Dewey Class. No.: 517.382 / SAN