Cita APA

Maurer, J., & Schoenberg, I. E. 1. (1998). True colors 1: An ELF course for real communication. New York, New York: Longman.

Citación estilo Chicago

Maurer, Jay, y Irene E. 1946- Schoenberg. True Colors 1: An ELF Course for Real Communication. New York, New York: Longman, 1998.

Cita MLA

Maurer, Jay, y Irene E. 1946- Schoenberg. True Colors 1: An ELF Course for Real Communication. New York, New York: Longman, 1998.