Παραπομπή APA

Ambrosetti, A., & Chang K. C. (1995). Variational methods in nonlinear analysis. Gordon and Breach.

Παραπομπή Chicago Style

Ambrosetti, Antonio, και Chang K. C. Variational Methods in Nonlinear Analysis. Australia: Gordon and Breach, 1995.

Παραπομπή MLA

Ambrosetti, Antonio, και Chang K. C. Variational Methods in Nonlinear Analysis. Gordon and Breach, 1995.