Cita APA (7a ed.)

Lefschetz, S. (1977). Differential equations: Geometric theory. Dover.

Cita Chicago Style (17a ed.)

Lefschetz, Salomon. Differential Equations: Geometric Theory. Dover, 1977.

Cita MLA (9a ed.)

Lefschetz, Salomon. Differential Equations: Geometric Theory. Dover, 1977.