Παραπομπή APA

Harker, R. J. (1983). Centralized methods of vibration analysis. Wiley Eastern.

Παραπομπή Chicago Style

Harker, Ralph J. Centralized Methods of Vibration Analysis. New York: Wiley Eastern, 1983.

Παραπομπή MLA

Harker, Ralph J. Centralized Methods of Vibration Analysis. Wiley Eastern, 1983.