Cavusgil, S. L., & Fellag, L. R. (1998). Looking ahead: Instructor's manual, book 1 and book 2 (1a. ed.). Heinle & Heinle.
Cita Chicago (17th ed.)Cavusgil, Sharon L., i Linda Robinson Fellag. Looking Ahead: Instructor's Manual, Book 1 and Book 2. 1a. ed. Pacific Grove: Heinle & Heinle, 1998.
Cita MLA (9th ed.)Cavusgil, Sharon L., i Linda Robinson Fellag. Looking Ahead: Instructor's Manual, Book 1 and Book 2. 1a. ed. Heinle & Heinle, 1998.
Atenció: Aquestes cites poden no estar 100% correctes.