APA

Langley L. D., . (1985). The United States and the caribbean in the twentieth century. : .

Chicago

Langley Lester D, . 1985. The United States and the caribbean in the twentieth century. : .

Harvard

Langley L. D., . (1985). The United States and the caribbean in the twentieth century. : .

MLA

Langley Lester D, . The United States and the caribbean in the twentieth century. : . 1985.