Helm, T. (1967). Hurricanes: Weather at its worst. Dodd Mead.
Cita Chicago Style (17a ed.)Helm, Thomas. Hurricanes: Weather at Its Worst. New York: Dodd Mead, 1967.
Cita MLA (9a ed.)Helm, Thomas. Hurricanes: Weather at Its Worst. Dodd Mead, 1967.
Precaución: Estas citas no son 100% exactas.