Cita APA

(1995). Spectrum: A communicative course in English, testing program (New edition.). Englewood Cliffs, N.J.: Prentice Hall Regents.

Citación estilo Chicago

Spectrum: A Communicative Course in English, Testing Program. New edition. Englewood Cliffs, N.J.: Prentice Hall Regents, 1995.

Cita MLA

Spectrum: A Communicative Course in English, Testing Program. New edition. Englewood Cliffs, N.J.: Prentice Hall Regents, 1995.