Eastham, M. S. P. Theory of ordinary differential equations / [Book] / M. S. P. Eastham. - New York, : New York, : Van Nostrand Reinhold, 1970. - xi, 116 pages : 24 cm. - The New university mathematics series . All. ISBN: 0442022174 Nat. Bib. No.: B70-18082 Subjects--Topical Terms: Differential equations. Dewey Class. No.: 517.382