Cita APA (7a ed.)
(1990). Center for the Study of the Presidency. Center for the Study of the Presidency.
Cita Chicago Style (17a ed.)
Center for the Study of the Presidency. Estados Unidos: Center for the Study of the Presidency, 1990.
Cita MLA (9a ed.)
Center for the Study of the Presidency. Center for the Study of the Presidency, 1990.
Precaución: Estas citas no son 100% exactas.