Cita APA (7th ed.)
Phillips, D. (1989). Longman practice tests for the TOEFL. Longman.
Cita Chicago (17th ed.)
Phillips, Deborah. Longman Practice Tests for the TOEFL. White Plains, N. Y.: Longman, 1989.
Cita MLA (9th ed.)
Phillips, Deborah. Longman Practice Tests for the TOEFL. Longman, 1989.
Atenció: Aquestes cites poden no estar 100% correctes.