APA (7th ed.) Zitazioa
Knudsen, H. L. (1950). The Field radiated by circular and square, helical beam antennas. Akad. for the tekniske videnskaber; Gad in Komm.
Chicago Style (17th ed.) Zitazioa
Knudsen, H. Lottrup. The Field Radiated by Circular and Square, Helical Beam Antennas. København: Akad. for the tekniske videnskaber; Gad in Komm, 1950.
MLA (9th ed.) Zitazioa
Knudsen, H. Lottrup. The Field Radiated by Circular and Square, Helical Beam Antennas. Akad. for the tekniske videnskaber; Gad in Komm, 1950.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.