Graver, B. (1963). Advances english practice. Oxford University Press.
Cita Chicago Style (17a ed.)Graver, B.D. Advances English Practice. London: Oxford University Press, 1963.
Cita MLA (8a ed.)Graver, B.D. Advances English Practice. Oxford University Press, 1963.
Precaución: Estas citas no son 100% exactas.