Cita APA (7th ed.)

Erugin, N. P. (1966). Linear systems of ordinary differential equations with periodic and quasi-periodic coefficients. Academic Press.

Cita Chicago (17th ed.)

Erugin, Nikolay P. Linear Systems of Ordinary Differential Equations with Periodic and Quasi-periodic Coefficients. Nueva York: Academic Press, 1966.

Cita MLA (9th ed.)

Erugin, Nikolay P. Linear Systems of Ordinary Differential Equations with Periodic and Quasi-periodic Coefficients. Academic Press, 1966.