Cita APA (7th ed.)

Langley, L. D. (1985). The United States and the Caribbean in the twentieth century. The University of Georgia.

Cita Chicago (17th ed.)

Langley, Lester D. The United States and the Caribbean in the Twentieth Century. Atlanta: The University of Georgia, 1985.

Cita MLA (9th ed.)

Langley, Lester D. The United States and the Caribbean in the Twentieth Century. The University of Georgia, 1985.