Littlejohn, A., & Hicks, D. (1997). Cambridge english for schools: Student's book three. Cambridge University Press.
Cita Chicago (17th ed.)Littlejohn, Andrew, i Diana Hicks. Cambridge English for Schools: Student's Book Three. Cambridge: Cambridge University Press, 1997.
Cita MLA (9th ed.)Littlejohn, Andrew, i Diana Hicks. Cambridge English for Schools: Student's Book Three. Cambridge University Press, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.