APA (7th ed.) Citation

NAYFEH, A. H. (1973). Perturbation methods.: Ali Hasan NAYFEH. John wiley.

Chicago Style (17th ed.) Citation

NAYFEH, Ali Hasan. Perturbation Methods.: Ali Hasan NAYFEH. New York: John wiley, 1973.

MLA (9th ed.) Citation

NAYFEH, Ali Hasan. Perturbation Methods.: Ali Hasan NAYFEH. John wiley, 1973.