Littlejohn, A., & Hicks, D. (1997). Cambridge English for schools.: Teacher's book three. Cambridge University Press.
Citazione stile Chigago Style (17a edizione)Littlejohn, Andrew, e Diana Hicks. Cambridge English for Schools.: Teacher's Book Three. Cambridge: Cambridge University Press, 1997.
Citatione MLA (9a ed.)Littlejohn, Andrew, e Diana Hicks. Cambridge English for Schools.: Teacher's Book Three. Cambridge University Press, 1997.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.