APA

Coddington (Earl A) ;Levinson (Norman), . (1990). Theory Of Ordinary Differential Equations. : .

Chicago

Coddington (Earl A) ;Levinson (Norman), . 1990. Theory Of Ordinary Differential Equations. : .

Harvard

Coddington (Earl A) ;Levinson (Norman), . (1990). Theory Of Ordinary Differential Equations. : .

MLA

Coddington (Earl A) ;Levinson (Norman), . Theory Of Ordinary Differential Equations. : . 1990.