3Metzger, Walter. 1994. The Academic Profession in the United States. From Clark, Burton. The Academic Profession: National, Disciplinary and Institutional Settings.Berkley and Las Angles and London:University of California Press. 132. 131.
4National Center for Education Statistics. Classification of Instructional Programs: 2000 Edition (CIP-2000). Http://nces. ed. gov/pubs 2002/2002/65.2. pdf