Cita APA (7a ed.)
O'Neill, R. (1987). Success at First Certificate: Practice Tests 1. The University Press.
Cita Chicago Style (17a ed.)
O'Neill, Robert. Success at First Certificate: Practice Tests 1. Oxford: The University Press, 1987.
Cita MLA (9a ed.)
O'Neill, Robert. Success at First Certificate: Practice Tests 1. The University Press, 1987.
Precaución: Estas citas no son 100% exactas.