APA (7e ed.) Bronvermelding

Betsis, A. (1996). Cambridge First certificate: Rivision practice tests. Cambridge University Press.

Chicago (17e ed.) Bronvermelding

Betsis, Andrew. Cambridge First Certificate: Rivision Practice Tests. Cambridge: Cambridge University Press, 1996.

MLA (8e ed.) Bronvermelding

Betsis, Andrew. Cambridge First Certificate: Rivision Practice Tests. Cambridge University Press, 1996.