Παραπομπή σε μορφή APA (7η εκδ.)

Moustafa Moussa, H. R. (1967). Excitation of helium by fast electrons and polarization of the resulting radiation. Drukkerij "Luctor et Emergo".

Παραπομπή σε μορφή Chicago (17η εκδ.)

Moustafa Moussa, Hammam Rashad. Excitation of Helium by Fast Electrons and Polarization of the Resulting Radiation. Leiden: Drukkerij "Luctor et Emergo", 1967.

Παραπομπή σε μορφή MLA (8th εκδ.)

Moustafa Moussa, Hammam Rashad. Excitation of Helium by Fast Electrons and Polarization of the Resulting Radiation. Drukkerij "Luctor et Emergo", 1967.