Gaya APA

Maurer, J., schoenberg., I, E. (1999). True colors an EFL course for real communication 4 . New York: New York : Longman, 1999.

Gaya MLA

Maurer, Jay., schoenberg., Irene, E,. "True colors an EFL course for real communication 4". New York: New York : Longman, 1999, 1999. Text.