Παραπομπή σε μορφή APA (7η εκδ.)

Amer, T. S., Bek, M. A., & Hamada, I. S. (2016). On the Motion of Harmonically Excited Spring Pendulum in Elliptic Path Near Resonances. Wiley.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Amer, T. S., M. A. Bek, και I. S. Hamada. On the Motion of Harmonically Excited Spring Pendulum in Elliptic Path Near Resonances. Wiley, 2016.

Παραπομπή σε μορφή MLA (9th εκδ.)

Amer, T. S., et al. On the Motion of Harmonically Excited Spring Pendulum in Elliptic Path Near Resonances. Wiley, 2016.