Cita APA (7a ed.)
O'Neill, R. (1992). Success at First Certificate: Practice Test 1 with key (7.impression.). The University Press.
Cita Chicago Style (17a ed.)
O'Neill, Robert. Success at First Certificate: Practice Test 1 with Key. 7.impression. Oxford: The University Press, 1992.
Cita MLA (9a ed.)
O'Neill, Robert. Success at First Certificate: Practice Test 1 with Key. 7.impression. The University Press, 1992.
Precaución: Estas citas no son 100% exactas.