Littlejohn, A. (1999). Cambridge English worldwide: Student's book. Cambridge, UK: Cambridge University Press.
Trích dẫn kiểu ChicagoLittlejohn, Andrew. Cambridge English Worldwide: Student's Book. Cambridge, UK: Cambridge University Press, 1999.
MLA CitationLittlejohn, Andrew. Cambridge English Worldwide: Student's Book. Cambridge, UK: Cambridge University Press, 1999.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.