Cita APA (7a ed.)

Harrison, M., & Kerr, R. (1997). First certificate: Practice tests 2 : five tests for the new Cambridge First Certificate in English. Oxford University Press.

Cita Chicago Style (17a ed.)

Harrison, Mark, y Rosalie Kerr. First Certificate: Practice Tests 2 : Five Tests for the New Cambridge First Certificate in English. Oxford [etc.]: Oxford University Press, 1997.

Cita MLA (9a ed.)

Harrison, Mark, y Rosalie Kerr. First Certificate: Practice Tests 2 : Five Tests for the New Cambridge First Certificate in English. Oxford University Press, 1997.