Ordinary Differential Equations - Paperback By Birkhoff, Garrett - GOOD

Ordinary Differential - Paperback, by Birkhoff Garrett; Rota - Acceptable

Ordinary Differential Equations (Mit Press)

Ordinary Differential Equations 4e, Birkhoff, Garrett

Qualitative Theory of Ordinary Differential Equations

Ordinary Differential Equations (Dover Books on Mathematics)

Topics In Ordinary Differential Equations By William D. Lakin

Ordinary Differential Equations - 9780898715101