Cita APA (7a ed.)

Maurer, J., & Schoenberg, I. E. (1999). True colors: An EFL course for real communication: basic. Longman.

Cita Chicago Style (17a ed.)

Maurer, Jay, y Irene E. Schoenberg. True Colors: An EFL Course for Real Communication: Basic. New York, EUA: Longman, 1999.

Cita MLA (9a ed.)

Maurer, Jay, y Irene E. Schoenberg. True Colors: An EFL Course for Real Communication: Basic. Longman, 1999.