Citazione APA

Salle, J. L., & Lefschetz, S. (1961). Stability by Liapunov's direct method: With applications. New York: Academic Press.

Stile di citazione Chicago

Salle, Joseph La., e Solomon Lefschetz. Stability By Liapunov's Direct Method: With Applications. New York: Academic Press, 1961.

Citazione MLA

Salle, Joseph La., e Solomon Lefschetz. Stability By Liapunov's Direct Method: With Applications. New York: Academic Press, 1961.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.