APA

Gifford P., Woodrow Wilson International Center for Scholars & ed.The National interests of the United States in foreign policy. Washington, D.C: University Press of America.

Chicago

Gifford Prosser, Woodrow Wilson International Center for Scholars and ed.The National interests of the United States in foreign policy. Washington, D.C: University Press of America.

Harvard

Gifford P., Woodrow Wilson International Center for Scholars and ed.The National interests of the United States in foreign policy. Washington, D.C: University Press of America.

MLA

Gifford Prosser, Woodrow Wilson International Center for Scholars and ed.Washington, D.C: University Press of America. .