Cita APA (7a ed.)
(1978). New english 900: Teacher's book. Macmillan publishing.
Cita Chicago Style (17a ed.)
New English 900: Teacher's Book. New York: Macmillan publishing, 1978.
Cita MLA (9a ed.)
New English 900: Teacher's Book. Macmillan publishing, 1978.
Precaución: Estas citas no son 100% exactas.