Cita APA (7a ed.)

Estados Unidos. Secretary of State. (1971). United States foreign policy 1969-1970. Government Printing Office.

Cita Chicago Style (17a ed.)

Estados Unidos. Secretary of State. United States Foreign Policy 1969-1970. Washington: Government Printing Office, 1971.

Cita MLA (9a ed.)

Estados Unidos. Secretary of State. United States Foreign Policy 1969-1970. Government Printing Office, 1971.