Berkeley , . H. (1968). Power of the prime minister. Allen & Unwin.
Cita Chicago Style (17a ed.)Berkeley , Humphry. Power of the Prime Minister. London: Allen & Unwin, 1968.
Cita MLA (9a ed.)Berkeley , Humphry. Power of the Prime Minister. Allen & Unwin, 1968.
Precaución: Estas citas no son 100% exactas.