Cita APA (7a ed.)
Hughes, B. B. International Futures: Choices in the Creation of a New World Order. Westview.
Cita estilo Chicago (17a ed.)
Hughes, Barry B. International Futures: Choices in the Creation of a New World Order. Boulder, EUA: Westview.
Cita MLA (9a ed.)
Hughes, Barry B. International Futures: Choices in the Creation of a New World Order. Westview.
Precaución: Estas citas no son 100% exactas.