APA

Dreier J., . (1962). The organization of American States and the Hemisphere Crisis. Estados Unidos: Harper & Row publishers.

Chicago

Dreier John, . 1962. The organization of American States and the Hemisphere Crisis. Estados Unidos: Harper & Row publishers.

Harvard

Dreier J., . (1962). The organization of American States and the Hemisphere Crisis. Estados Unidos: Harper & Row publishers.

MLA

Dreier John, . The organization of American States and the Hemisphere Crisis. Estados Unidos: Harper & Row publishers. 1962.