Arscott, F. (1964). Periodic differential equations. The Macmillan.
Cita Chicago (17th ed.)Arscott, F. Periodic Differential Equations. New York: The Macmillan, 1964.
Cita MLA (9th ed.)Arscott, F. Periodic Differential Equations. The Macmillan, 1964.
Atenció: Aquestes cites poden no estar 100% correctes.