Παραπομπή σε μορφή APA (7η εκδ.)

Greenburg, S. T. (1989). Academic freedom: Identifying the parameters for the debate on academic freedom. Institute of Christian Higher Education.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Greenburg, S. Thomas. Academic Freedom: Identifying the Parameters for the Debate on Academic Freedom. San Antonio, Tex.: Institute of Christian Higher Education, 1989.

Παραπομπή σε μορφή MLA (8th εκδ.)

Greenburg, S. Thomas. Academic Freedom: Identifying the Parameters for the Debate on Academic Freedom. Institute of Christian Higher Education, 1989.