APA استشهاد

Nayfeh, A. (1985). Problems in perturbation. John-Wiley and sons.

استشهاد بنمط شيكاغو

Nayfeh, A.H. Problems in Perturbation. New York: John-Wiley and sons, 1985.

MLA استشهاد

Nayfeh, A.H. Problems in Perturbation. John-Wiley and sons, 1985.