Cita APA (7a ed.)

Roxin, E. O. (1960). Reachable zones in autonomous differential systems. [s.n.].

Cita Chicago Style (17a ed.)

Roxin, Emilio O. Reachable Zones in Autonomous Differential Systems. [s.l.]: [s.n.], 1960.

Cita MLA (9a ed.)

Roxin, Emilio O. Reachable Zones in Autonomous Differential Systems. [s.n.], 1960.