Cita APA (7a ed.)

328934 Giacaglia, G. E. O. (1972). Perturbation methods in non-linear systems. New York : Springer-Verlag.

Cita Chicago Style (17a ed.)

328934 Giacaglia, Giorgio E. O. Perturbation Methods in Non-linear Systems. New York : Springer-Verlag, 1972.

Cita MLA (9a ed.)

328934 Giacaglia, Giorgio E. O. Perturbation Methods in Non-linear Systems. New York : Springer-Verlag, 1972.