Potter, S. (1968). Language in the modern world. Penguin.
Cita Chicago Style (17a ed.)Potter, Simeon. Language in the Modern World. Harmondsworth: Penguin, 1968.
Cita MLA (9a ed.)Potter, Simeon. Language in the Modern World. Penguin, 1968.
Precaución: Estas citas no son 100% exactas.