APA (7th ed.) Citation

Giacaglia, G. E. O. (1972). Perturbation Methods in Non-Linear Systems. Springer New York.

Chicago Style (17th ed.) Citation

Giacaglia, Georgio Eugenio Oscare. Perturbation Methods in Non-Linear Systems. New York, NY: Springer New York, 1972.

MLA (9th ed.) Citation

Giacaglia, Georgio Eugenio Oscare. Perturbation Methods in Non-Linear Systems. Springer New York, 1972.