Παραπομπή σε μορφή APA (7η εκδ.)

Olhoff, N. (1978). Optimal design against structural vibration and instability. Technical University of Denmark.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Olhoff, Niels. Optimal Design Against Structural Vibration and Instability. Lyngby [Denmark]: Technical University of Denmark, 1978.

Παραπομπή σε μορφή MLA (8th εκδ.)

Olhoff, Niels. Optimal Design Against Structural Vibration and Instability. Technical University of Denmark, 1978.