Cita APA (7a ed.)

Ghoussoub, N. (1993). Duality and perturbation methods in critical point theory. University Press.

Cita Chicago Style (17a ed.)

Ghoussoub, N. Duality and Perturbation Methods in Critical Point Theory. Cambridge: University Press, 1993.

Cita MLA (9a ed.)

Ghoussoub, N. Duality and Perturbation Methods in Critical Point Theory. University Press, 1993.