Cita APA

Howe, D. H. (1987). American English today!: Teacher's book. New York: Oxford University Press.

Citación estilo Chicago

Howe, D. H. American English Today!: Teacher's Book. New York: Oxford University Press, 1987.

Cita MLA

Howe, D. H. American English Today!: Teacher's Book. New York: Oxford University Press, 1987.