(1990). Vol. 67, № 12; Journal of Applied Physics. 1990.
Chicago Style aipamenaVol. 67, № 12; Journal of Applied Physics. 1990, 1990.
MLA aipamenaVol. 67, № 12; Journal of Applied Physics. 1990, 1990.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.