Cita APA (7a ed.)

(1955). Sixty- year weather forecasts. Smithsonian Institution.

Cita Chicago Style (17a ed.)

Sixty- Year Weather Forecasts. Washington, D. C: Smithsonian Institution, 1955.

Cita MLA (9a ed.)

Sixty- Year Weather Forecasts. Smithsonian Institution, 1955.

Precaución: Estas citas no son 100% exactas.