Birss, R. R. (1967). Electric and magnetic forces. Longmans.
Chicago Style aipamenaBirss, Robert R. Electric and Magnetic Forces. London: Longmans, 1967.
MLA aipamenaBirss, Robert R. Electric and Magnetic Forces. Longmans, 1967.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.