APA-viite (7. p.)

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

Chicago-viite (17. p.)

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

MLA-viite (8. p.)

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