APA (7th ed.) Citation

Seifert, G., Lefschetz, S., & Cesari, L. (1956). Contributions to the theory of nonlinear oscillations. Princeton University Press.

Chicago Style (17th ed.) Citation

Seifert, G., Solomon Lefschetz, and Lamberto Cesari. Contributions to the Theory of Nonlinear Oscillations. Princeton: Princeton University Press, 1956.

MLA (8th ed.) Citation

Seifert, G., et al. Contributions to the Theory of Nonlinear Oscillations. Princeton University Press, 1956.