Betsis, A. (1996). Cambridge First certificate: Rivision practice tests. Cambridge University Press.
Chicagoスタイル(17版)引用形式Betsis, Andrew. Cambridge First Certificate: Rivision Practice Tests. Cambridge: Cambridge University Press, 1996.
MLA(8版)引用形式Betsis, Andrew. Cambridge First Certificate: Rivision Practice Tests. Cambridge University Press, 1996.
警告: この引用は必ずしも正確ではありません.