Cita APA

LaSalle, J. P., & Lefschetz, S. (1961). Stability by Liapunov's direct method: With applications. Academic Press.

Citación estilo Chicago

LaSalle, Joseph P., and Solomon Lefschetz. Stability By Liapunov's Direct Method: With Applications. New York: Academic Press, 1961.

Cita MLA

LaSalle, Joseph P., and Solomon Lefschetz. Stability By Liapunov's Direct Method: With Applications. New York: Academic Press, 1961.