Churchill, W. (1951). Closing the ring. Houghton Mifflin.
Cita Chicago Style (17a ed.)Churchill, Winston. Closing the Ring. Boston: Houghton Mifflin, 1951.
Cita MLA (9a ed.)Churchill, Winston. Closing the Ring. Houghton Mifflin, 1951.
Precaución: Estas citas no son 100% exactas.