Jones, L., & Von Baeyer, C. (1983). Functions of American English: Communication activities for the classroom : student's book. Cambridge University Press.
Cita Chicago (17th ed.)Jones, Leo, i C. Von Baeyer. Functions of American English: Communication Activities for the Classroom : Student's Book. Cambridge [Cambridgeshire] ; New York: Cambridge University Press, 1983.
Cita MLA (8th ed.)Jones, Leo, i C. Von Baeyer. Functions of American English: Communication Activities for the Classroom : Student's Book. Cambridge University Press, 1983.
Atenció: Aquestes cites poden no estar 100% correctes.