APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

ScienceDirect (Online service) and N. P. Erugin. Linear Systems of Ordinary Differential Equations, with Periodic and Quasi-periodic Coefficients. New York: Academic Press, 1966.

MLA (9th ed.) Citation

ScienceDirect (Online service) and N. P. Erugin. Linear Systems of Ordinary Differential Equations, with Periodic and Quasi-periodic Coefficients. Academic Press, 1966.