Greenburg, S. T. (1989). Academic freedom: Identifying the parameters for the debate on academic freedom. Institute of Christian Higher Education.
Chicago-referens (17:e uppl.)Greenburg, S. Thomas. Academic Freedom: Identifying the Parameters for the Debate on Academic Freedom. San Antonio, Tex.: Institute of Christian Higher Education, 1989.
MLA-referens (8:e uppl.)Greenburg, S. Thomas. Academic Freedom: Identifying the Parameters for the Debate on Academic Freedom. Institute of Christian Higher Education, 1989.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.