APA (7th ed.) Zitazioa

Helm, T. (1967). Hurricanes: Weather at its worst. Dodd Mead.

Chicago Style (17th ed.) Zitazioa

Helm, Thomas. Hurricanes: Weather at Its Worst. New York: Dodd Mead, 1967.

MLA (9th ed.) Zitazioa

Helm, Thomas. Hurricanes: Weather at Its Worst. Dodd Mead, 1967.