Cita APA (7a ed.)

LaSalle, J. P., & Lefschetz, S. (1963). International Symposium on Nonlinear Differential Equations and Nonlinear Mechanics. Academic Press.

Cita Chicago Style (17a ed.)

LaSalle, Joseph P., y Solomon Lefschetz. International Symposium on Nonlinear Differential Equations and Nonlinear Mechanics. New York: Academic Press, 1963.

Cita MLA (8a ed.)

LaSalle, Joseph P., y Solomon Lefschetz. International Symposium on Nonlinear Differential Equations and Nonlinear Mechanics. Academic Press, 1963.