Cita APA (7th ed.)

Ovsiannikov, L. V. (1982). Group analysis of differential equations. Academic Press.

Cita Chicago (17th ed.)

Ovsiannikov, Lev Vasilevich. Group Analysis of Differential Equations. Nueva York: Academic Press, 1982.

Cita MLA (9th ed.)

Ovsiannikov, Lev Vasilevich. Group Analysis of Differential Equations. Academic Press, 1982.