Cita APA (7th ed.)

United States. Environmental Science Services Administration. (1970). Climates of the States: Climate of Puerto Rico and U.S. Virgin Islands (Rev. [ed.].). U.S. Dept. of Commerce.

Cita Chicago (17th ed.)

United States. Environmental Science Services Administration. Climates of the States: Climate of Puerto Rico and U.S. Virgin Islands. Rev. [ed.]. Silver Spring, Md.: U.S. Dept. of Commerce, 1970.

Cita MLA (8th ed.)

United States. Environmental Science Services Administration. Climates of the States: Climate of Puerto Rico and U.S. Virgin Islands. Rev. [ed.]. U.S. Dept. of Commerce, 1970.