APA

Maurer J., Schoenberg I. E., . (1999). True colors : an EFL course for real communication. : Addison Wesley Longman, Inc.

Chicago

Maurer Jay, Schoenberg Irene E, . 1999. True colors : an EFL course for real communication. : Addison Wesley Longman, Inc.

Harvard

Maurer J., Schoenberg I. E., . (1999). True colors : an EFL course for real communication. : Addison Wesley Longman, Inc.

MLA

Maurer Jay, Schoenberg Irene E, . True colors : an EFL course for real communication. : Addison Wesley Longman, Inc. 1999.