Betsis, A. (1996). Cambridge First certificate: Rivision practice tests. Cambridge University Press.
Cita Chicago Style (17a ed.)Betsis, Andrew. Cambridge First Certificate: Rivision Practice Tests. Cambridge: Cambridge University Press, 1996.
Cita MLA (8a ed.)Betsis, Andrew. Cambridge First Certificate: Rivision Practice Tests. Cambridge University Press, 1996.
Precaución: Estas citas no son 100% exactas.