Dyfyniad APA

Lefschetz, S. (1956). Contributions to the theory of nonlinear oscillations, Vol.3.

Dyfyniad Arddull Chicago

Lefschetz, S. Contributions to the Theory of Nonlinear Oscillations, Vol.3. Princeton University Press, New Jersey, 1956.

Dyfyniad MLA

Lefschetz, S. Contributions to the Theory of Nonlinear Oscillations, Vol.3. 1956.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.