Nayfeh, A. (1985). Problems in perturbation. John-Wiley and sons.
Citación estilo ChicagoNayfeh, A.H. Problems in Perturbation. New York: John-Wiley and sons, 1985.
Cita MLANayfeh, A.H. Problems in Perturbation. John-Wiley and sons, 1985.
Warning: These citations may not always be 100% accurate.