Lefschetz, S., & Cesari, L. (1950). Contributions to the theory of nonlinear oscillations. Princeton University Press.
Chicago Style (17th ed.) CitationLefschetz, Solomon, and Lamberto Cesari. Contributions to the Theory of Nonlinear Oscillations. Princeton: Princeton University Press, 1950.
MLA (8th ed.) CitationLefschetz, Solomon, and Lamberto Cesari. Contributions to the Theory of Nonlinear Oscillations. Princeton University Press, 1950.
Warning: These citations may not always be 100% accurate.